Science experiments promote the study of the physical and natural world. When it comes to studying science, it’s not just about facts but also about discovering new things by testing ideas and theories. Educators understand that scientific learning goes beyond textbooks. What makes science so interesting is its ability to be interactive with hands-on learning. One of the best ways to bring scient to life is through science experiments.

Science experiments encourage students to use scientific thinking. When they test a hypothesis, their learning goes beyond rote memorization as they develop an understanding of the world around them. When students are encouraged to use the scientific method, they ask questions, search for information to create theories, conduct scientific experiments, and collect data to answer their questions.

Why Test Assured Science Experiment Kits

With Test Assured’s Science Class Water Test Kit With TDS Meter, you can promote not only learning but the discovery of new ideas. Using our science experiment kits to test water encourages students to search for knowledge. They will learn how to adapt as they test different hypotheses while learning what works and what doesn’t work. Sometimes students learn more when they can understand not just the way something is but why it is that way. This is the kind of learning that our science experiment kits encourage through active learning.

Our water testing kids allow for an endless number of experiments that can be performed in the classroom. Students can all perform the same test and compare results, or they can be allowed to come up with their own unique experiments. The possibilities are endless. Challenge your students to come up with their own ideas or use some of the experiments that we’ve done ourselves. Using Test Assured Water Test Kits, you give students the freedom to explore, experiment, and explain.

The Testing Process Simple

The first thing you’ll need to do is gather up your supplies. Start with either of our water testing kits. The kit with the TDS meter will allow you to test for total dissolved solids using the TDS meter. The only other thing you will need is a selection of water samples. All of our kits come with a handy results notebook to keep track of your data.

Start with your TDS test since the meter will not fit in the test vials. It’s easier to complete this part of the experiment before transferring your samples to the vials. To perform the TDS test, simply turn on the meter and submerge the prongs in the samples. Rinse the meter with clean water and pat dry between each test.

After completing the TDS test, transfer the samples into the vials and label them, so you know which samples you are testing. Now you’re ready to get started with the rest of the tests. Follow the instructions to complete the Alkalinity/pH/Hardness Test, Total Chlorine/Copper/Nitrate/Nitrite Test, and Iron Test. It’s as simple as dipping the test strip in your sample, then comparing the strip to the color chart and recording the results.

Be sure to do the Iron Test last. There is a reagent that needs to be added to the sample that could alter the results of other tests.

Sample Science Experiments

1. An easy test to perform involves testing homemade water filters. Imagine if you had a natural disaster that compromised the local water supply. This is a real possibility for many people who live in hurricane and storm-prone areas. In such an emergency, your only source of water may not be safe to drink. If you don’t have a supply of clean water, would you be able to improvise and use common household materials to filter water to make it safe to drink? For this science project, testing homemade water filters, all you need is a water testing kit, some dirty water, and a few common household items for filters. We decided to use a paper towel, cotton, and a microfiber cloth as our filters.
2. If your students don’t mind a little dirt, they’re sure to enjoy this easy-to-perform science project testing dirty water. The first step is easy. Send the kids outside to collect three different dirt samples. Maybe scoop up some dirt from a potted plant or a garden area. Dig up a little bit of dirt and grass. Collect some mulch. Sweep up some grit from the street. Mix the dirt samples with some water, open up your water testing kit, and have everything you need for a fun science experiment.
3. Some health departments recommend flushing your pipes before using your tap water. This is because as water sits idle in pipes, it is possible that it could absorb materials from the plumbing system. The best way to avoid ingesting any of this contaminated water is to flush the pipes by letting your water run for a few minutes before using it. Your students can see how effective this theory is by conducting a simple experiment. Use our water testing kit to test water samples collected after flushing the pipes for varying amounts of time.
4. If your water was declared unsafe, what would you do? There are many simple methods that can be used to purify water at home, but which one works best? For emergency disinfection, the EPA recommends boiling water for one minute or adding bleach to disinfect your water. In this simple experiment, a Test Assured water testing kit to test some of the most common methods for improving water quality.

Sharing Your Results

Once you have completed each of the four tests on your samples, it’s time for your students to share their results. You can have them arrange the test sticks on a poster board to create a visual comparison of results from the different samples they collect. Older students can even create some graphs or charts from their results to highlight their conclusions.

These were just a few of the science experiments that we’ve performed with our water testing kits. Encourage your students to get creative and come up with their own ideas for science experiments.

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Science for Homeschoolers

Science is an important subject for children to learn, and sometimes it can be helpful when they can roll up their sleeves to really experience the subjects that are being taught. Our water testing experiments are a great way to make science fun and easier to understand. These projects not only help to reinforce the topic of scientific method but also why it is so important to take care of the earth’s natural resources.

The best part about these science experiments is that you can do them anytime, and they require very little equipment. All you need is our 4 Pack School & Experiment Kit or the Classroom Kit With TDS Meter and some water samples. You can choose from one of the projects listed here or others on our blog, or let your imagination be your guide and come up with your own hypothesis to test.

Hands-On Science Projects Helps Kids Learn

Not only do kids relate better to hands-on learning, but studies show that it can help stimulate brain growth. This is because when kids are able to put what they learn into practice, they gain a better understanding of the concepts. It also helps them develop their problem-solving skills and improve their critical thinking abilities.

Science is more than just the study of facts. It is also about engaging with the world around us, testing ideas and explanations. Much of the scientific theory that is taught today is based on what was learned from science experiments. Water testing science projects promote scientific thinking and problem-solving. They give children a chance to ask questions, create hypotheses, and test theories to better understand the world around them.

A Science Experiment for Kids: Testing Homemade Water Filters

Imagine if you had a natural disaster that compromised the local water supply. This is a real possibility for many people who live in hurricane and storm-prone areas. In such an emergency, your only source of water may not be safe to drink, forcing you to make a water filter with supplies you have on hand. If you don’t have a supply of clean water, would you be able to improvise and use common household materials to filter water to make it safe to drink? In this experiment, we chose a few homemade water filters that were suggested online to see which one did the best job at filtering dirty water.

For this science project, testing homemade water filters, all you need is a School and Science Fair Test Kit from TestAssured, some dirty water, and a few common household items for filters. We decided to use a paper towel, cotton, and a microfiber cloth as our filters. Click here to see instructions for the full experiment.

Fun Fall Science Project with Leaves

With cooler temperatures and fall on the horizon, this science experiment celebrates fall. As the seasons change, we find ourselves admiring the brightly colored leaves, so we decided to see how different leaves would impact our water samples. Our hypothesis was that different leaves would have different chemical and mineral qualities that would change the composition of the water. While this was true for some of the tests, one test, in particular, had some pretty surprising results.

To prepare for this test, head outside and gather some leaves or even some grass. Two of the leaves we chose were still fresh and green, but we did find a nice, pretty yellow leaf. With the help of the internet, we were able to identify our leaves as Oak, Southern Catalpa, and Magnolia. In addition to your leaves, you will also need a School and Science Fair Test Kit from TestAssured, which has all the tools and equipment that you will need to perform the water tests. More details for our leaf experiment can be found here.

Fishy Water Science Project

I think the part kids enjoy most about this project is getting to pick out which fishy water they’re going to test. We took a trip to our local pet store and asked if we could take a few samples from their fish tanks for an experiment. They were very helpful and explained some of the differences we might find in the water samples. Originally, we had planned to test water from different fish but ended up with samples from a variety of species. Our twelve-year-old picked out samples from Black Mussel Snails, African Dwarf Frogs, and Red Zebra Cichlids. Once you have your water samples, the only other equipment you need is a water testing kit from TestAssured. Then you will have everything you need for an easy science experiment that your kids will enjoy. Click here full the full experiment.

Does Movement in Water Affect Its Composition?

Movement is an essential part of a healthy body of water. In large bodies of water, this is caused by gravity and can be seen as a tide or current. Smaller bodies of water can be moved by the wind or plant and animal life. Even your tap water is moved mechanically from its source to the faucet. If movement is beneficial for water, can additional movement improve your water? We decided to test this theory using our water testing kit.

This science project involves testing tap water samples that have been moved in a blender for different amounts of time. This is an excellent science fair experiment that can be performed at different settings, for different times, to produce a variety of results. You can find all the details to perform this experiment here.

Put Science to the Test

These are just a few examples of educational science projects you can incorporate into your homeschooling plan. Science experiments are a great way to test the skills and knowledge your children are learning. They also give kids an opportunity to exercise their curiosity. Projects like these are a great way for students to apply what they are learning to real-world concerns.

Testing code for colors. This is an example of white text. While white is nice, it is not readable. Testing code for colors. This is an example of white text. While white is nice, it is not readable. Testing code for colors. This is an example of white text. While white is nice, it is not readable. Testing code for colors. This is an example of white text. While white is nice, it is not readable. Testing code for colors. This is an example of white text. While white is nice, it is not readable. Testing code for colors. This is an example of white text. While white is nice, it is not readable. Testing code for colors. This is an example of white text. While white is nice, it is not readable.

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Does the Time of Day Change What Is in Your Water?

With all of the scares about water quality and safety, there are many ways you can reduce your risk of drinking contaminated water. One of the cautions we have heard recently is that the quality of your municipal water can change depending on the time of day. This theory makes for an easy science fair project because all you need to do is collect samples from different times of the day and test them with the supplies provided in our science fair kit.

Are All Bottled Waters Created Equal?

As we’ve seen from recent news headlines, you cannot take safe drinking water for granted.  When people are worried about the quality of their tap water, they often turn to bottled water.  Today, bottled water is a growing industry, and there are dozens of brands to choose from, but are all brands created equal? Pick up a few different brands of bottled water, and you have all you need to put together an interesting project using our tests.

What’s in Your Mineral Water?

This is another experiment that uses store-bought water. The bottled water business is booming with a growing variety of water. Mineral water is touted to offer extra health benefits and is favored by those who like sparkling water with bubbles. For this project, you’ll test to see if there really is a difference between the different types of sparkling water. Along with the test kit, you’ll also need to purchase different brands of mineral water to test.

Is Rainwater Safe to Drink?

The continental United States gets an average of 30 inches of precipitation each year. With all of the water falling from the sky, you might be wondering if rainwater is safe to drink. While using rainwater is a great way to conserve resources, some sources state that rainwater might be harmful if used as drinking water. Depending on how the water is collected, it could contain dangerous contaminants. This project compares a variety of rainwater samples to regular tap water and filtered tap water to see how they compare. Before you can perform this experiment, you’ll need to collect some rainwater samples.

Preparation is Simple

Once you’ve purchased your water testing kit and decided which science fair project you’ll be working on, preparation is simple. To prepare for the tests, you’ll need to gather your water samples. Each kit comes with vials for your samples – be sure to label the vials as you fill them. You may also want to collect additional samples in larger containers or zipper sandwich bags, so you have enough for the TDS test.  You can easily label the bags, and they are large enough to allow for the TDS meter.  For more stability (and less chance of spills), you can put the baggies inside mugs or cups.

Now It’s Time for Testing

Before you get started with the tests, now is a good time for you to make some visual observations. Take notes about how clear or cloudy your samples look.  Additionally, look to see if visible particles are floating in any of the samples.  These observations can be written in the “Notes” on the last page of the results notebook.

At this point, you are ready to perform the first test, which will use the TDS meter to test the total amount of dissolved solids.  The meter will not fit in the test vials, so it is easier to complete this part of the experiment with your samples in baggies or poured into a cup.

Performing the TDS test is simple, just turn on the meter and submerge the prongs in the samples. Afterward, rinse the meter with clean water between each test. Using the results notebook that was included with the kit, record your results.

Now you’re ready to get started with the rest of the tests. Each kit includes a testing strip with instructions. The strips allow you to test for a variety of contaminants.

• Alkalinity
• pH
• Hardness
• Chlorine
• Copper
• Nitrate
• Nitrite
• Iron

Remember, it’s easiest to work with one sample at a time because you don’t want to risk cross-contaminating anything.  Follow the instructions to complete all of the tests, and don’t forget to record your findings in the results notebook.

Displaying Your Science Fair Results

When you have completed each of the tests on your four samples, it’s time to look at your results.  Ask yourself the following questions and record your answers on the “Notes” page.

• Was there a significant difference in quality among the samples?
• Could you determine if there was a water sample that was unhealthy?
• Which sample would be the best for drinking water and why?
• What results did you find the most surprising?

Afterward, you can use clear tape to fix the test sticks to the color charts to display your results for your science fair project.  You may even want to create some graphs or charts from your results so you can highlight your conclusion.

As you can see, Test Assured’s 4 Test Kit Set for Schools and Science Fairs offers a lot of options for easy-to-complete science projects. Use one of our project ideas and gather up some water samples, and you’ll have quantifiable data to create a visual display of your results.

So, be sure to share your results and project ideas with us in the comments.

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We decided to test some rainwater samples in this month’s science experiment for kids.  We’ll compare our rainwater samples to regular tap water and filtered tap water to see how they compare.  Before you can perform this experiment, you’ll need to collect some rainwater samples.  We had samples from four different rainfalls for our tests.  You will also need a School and Science Fair Test Kit from TestAssured which has all the tools and equipment that you will need to perform the water tests.

Supplies

The first thing you need to do is gather your supplies:

• Test Assured 4 Test Kit Set with TDS Meter
• 4 cups
• Rainwater samples
• Drinking water samples for comparison

Preparation

To prepare for the tests, you’ll need to gather your water samples.  We left a clean dry bowl outside each time it rained in the weeks before we performed the test.  It’s springtime in South Carolina, so we didn’t have to wait long to collect our samples.  Each time we had collected some rainwater in our bowl, we poured it into one of the test vials from the School and Science Fair Test Kit.  We labeled the vials with the date and noted anything important in the samples results notebook.  For example, our sample from 2/16/19 had a layer of yellow pollen floating on top, so we made a note of that in case it impacted our tests.  You can also store your water samples in plastic ziplock bags, but don’t forget to label the bags with a permanent marker.

Before you start testing, we recommend that you have some control samples of drinking water that you can use for comparison. We used tap water and filtered water, but bottled water or distilled water would also be great options.

Testing

First, you will start with the test for total dissolved solids, using the TDS meter.  Because the meter will not fit in the test vials, you will need to transfer your samples into larger containers for this part of the experiment.  We found that plastic cups work very well for the TDS testing.  To perform the TDS test, simply turn on the meter and submerge the prongs in the samples. Rinse the meter with clean water between each test. Record your results in the results notebook. Be sure to read the TDS meter carefully.  High readings will be noted with “x10.”  

We weren’t surprised to find that Sample C, the one with the pollen, had a higher TDS reading than our other rainwater samples.  Our control samples had the highest TDS readings.

After completing the TDS test, you will need to pour your samples back into the vials you labeled.  Do this over a sink and be sure to wipe up any spills, so you don’t contaminate the test strips.  Now you’re ready to get started with the rest of the tests. It’s easiest to work with one sample at a time.  Follow these instructions to complete the remaining tests.

Alkalinity/pH/Hardness Test

1. Remove the test strip from the packet labeled, “ALK/pH/Hard”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample for one second and remove
4. Hold the test strip level and wait 10 seconds
5. Place the strip as shown in the picture and compare to the color chart for alkalinity, pH, and harness
6. Record your results in the results notebook

There wasn’t much variation among our rainwater samples for this set of tests. The biggest difference was that the pH of rainwater was a little lower than our control samples.

Total Chlorine/Copper/Nitrate/Nitrite Test

1. Remove the test strip from the packet labeled, “CL/CO/NA/NI”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample three times and remove – DO NOT SHAKE OFF EXCESS WATER
4. Hold the test strip level for 2 seconds
5. Place the strip as shown in the picture and compare to the color chart for chlorine and copper
6. Wait 45 seconds before reading the results for nitrate and nitrite
7. Record your results in the results notebook

For this set of tests, none of our samples contained any iron or nitrites.  Our filtered water actually did not contain any contaminants.  We did see some variation in our samples for nitrates.  We also found that the rainwater samples contained a trace amount of copper that was not found in the control samples.

Iron Test (Complete this test last)

1. Remove one iron reagent tablet from the foil packet and place in test vial (the reagent could alter the results of other tests which is why the iron test is completed last)
2. Place the cap on the test vial and shake for approximately one minute, until the tablet is completely dissolved
3. Remove the test strip from the packet labeled, “Iron Test”
4. Dip the strip in the sample for 2 seconds
5. Shake the strip once and wait 60 seconds
6. Place the strip as shown in the picture and compare to the color chart for iron
7. Record your results in the results notebook

None of our samples contained any iron.

Repeat all three tests for each of your samples.  Make sure you wash your hands with soap and water when you are finished.

Results

Now that you have completed each of the tests on your four rainwater samples and your control samples, it’s time to look at your results.  Ask yourself these questions:

• Did the different rainwater samples vary compared to each other?
• How did the rainwater samples differ from your control samples?
• Do you think that rainwater is safe to drink?
• What results did you find the most surprising?

Record your answers on the “Notes” page.

If you are doing a science project, be sure to create some graphs and charts to display your results.  You can also use clear tape to fix the test sticks to the color charts as another way to show your results.

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Supplies

The first thing you need to do is gather your supplies:

• Test Assured 4 Test Kit Set with TDS Meter
• 4 cups
• Dirty water (we added some dirt from the backyard to regular tap water)
• Assorted items that can be used as filters (paper towels, old rags, washcloths, coffee filters, anything porous that could filter out dirt while allowing the water to seep through)

Preparation

To prepare for the tests, you’ll need some dirty water.  We scooped up some dirt from the yard and added it to tap water.  Be sure to stir the mixture well.

Next you’ll need to set up your filters to create the different samples you will be testing.  We used a metal strainer and lined it with the different items we were using as filters.

Make sure that you stir the dirty water frequently so the dirt doesn’t settle to the bottom. You want to make sure that each sample is the same before it goes through your filters.  Don’t forget to fill one cup with plain tap water that has not been filtered.  This will be the control that the other samples are measured against.

Now is a good time to label your vials and list your different samples in the results notebook.

Testing

First, you will start with the test for total dissolved solids, using the TDS meter.  Because the meter will not fit in the test vials, it is easier to complete this part of the experiment while your samples are still in the cups.  To perform the TDS test, simply turn on the meter and submerge the prongs in the samples. Rinse the meter with clean water between each test. Record your results in the results notebook. Be sure to read the TDS meter carefully.  High readings will be noted with “x10.”  We were surprised to find that our control sample had a higher TDS reading that some of our filtered samples.

After completing the TDS test, you will need to pour your samples into the vials you labeled.  Do this over a sink and be sure to wipe up any spills, so you don’t contaminate the test strips.

Before you get started with the tests, now is a good time to make some visual observations. Take notes about how clear or cloudy your samples look.  Are there any visible particles floating in any of the samples?  Write your observations in the “Notes” on the last page of the results notebook.  For our samples, it was very obvious that the paper towel seemed to work the best as that filtered sample was not nearly as brown as the others.

Now you’re ready to get started with the rest of the tests. It’s easiest to work with one sample at a time.  Follow these instructions to complete the remaining tests.

Alkalinity/pH/Hardness Test

1. Remove the test strip from the packet labeled, “ALK/pH/Hard”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample for one second and remove
4. Hold the test strip level and wait 10 seconds
5. Place the strip as shown in the picture and compare to the color chart for alkalinity, pH, and harness
6. Record your results in the results notebook

Total Chlorine/Copper/Nitrate/Nitrite Test

1. Remove the test strip from the packet labeled, “CL/CO/NA/NI”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample three times and remove – DO NOT SHAKE OFF EXCESS WATER
4. Hold the test strip level for 2 seconds
5. Place the strip as shown in the picture and compare to the color chart for chlorine and copper
6. Wait 45 seconds before reading the results for nitrate and nitrite
7. Record your results in the results notebook

Iron Test (Complete this test last)

1. Remove one iron reagent tablet from the foil packet and place in test vial (the reagent could alter the results of other tests which is why the iron test is completed last)
2. Place the cap on the test vial and shake for approximately one minute, until the tablet is completely dissolved
3. Remove the test strip from the packet labeled, “Iron Test”
4. Dip the strip in the sample for 2 seconds
5. Shake the strip once and wait 60 seconds
6. Place the strip as shown in the picture and compare to the color chart for iron
7. Record your results in the results notebook

Repeat all three tests for each of your samples.  Make sure you wash your hands with soap and water when you are finished.

Results

Now that you have completed each of the tests on your four samples, it’s time to look at your results.  Ask yourself these questions:

• How did the control sample differ from your other samples
• Did any of the filters you used work better than others?
• Do you think you could rely on a homemade water filter in an emergency?
• What do you think would happen if you combined all of your filters?
• What results did you find the most surprising?

Record your answers on the “Notes” page.  If you are doing a science project, create a graph to show your results.  You can also use clear tape to fix the test sticks to the color charts to display your results.

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Pick Your Leaves

To prepare for this test, head outside and gather some leaves or even some grass.  Two of the leaves we chose were still fresh and green, but we did find a nice pretty yellow leaf.  With the help of the internet, we were able to identify our leaves as Oak, Southern Catalpa, and Magnolia.  In addition to your leaves, you will also need a School and Science Fair Test Kit from TestAssured which has all the tools and equipment that you will need to perform the water tests.

Supplies

The first thing you need to do is gather your supplies:

• Test Assured 4 Test Kit Set with TDS Meter
• 4 cups
• 3 different leaves
• Tap water
• Paper towels

Preparation

In order to make the leaf water solution, you need to crush or tear your leaves.  We tore ours into tiny pieces, put each sample in a glass and then added about 1/4 of tap water.  Once the water was in the cup we used our fingers to mash the leaves even more. Don’t forget to save one glass without any leaves for your control sample.

Now is a good time to label your vials and list the names of your leaf water samples in the results notebook.  You might want to write down some observations about your samples as well. For example, the water with the Southern Catalpa leaf had a yellow tint to it.  We also noticed that the Magnolia leaf had a strange odor once we started to tear it up.  These observations can be written in the “Notes” on the last page of the results notebook.

Testing

First, you will start with the test for total dissolved solids, using the TDS meter.  Because the meter will not fit in the test vials, it is easier to complete this part of the experiment while your samples are still in the cups.  To perform the TDS test, simply turn on the meter and submerge the prongs in the samples. Rinse the meter with clean water between each test. Record your results in the results notebook. Be sure to read the TDS meter carefully.  High readings will be noted with “x10.”

After completing the TDS test, you will need to pour your samples into the vials you labeled.  Do this over a sink and be sure to wipe up any spills, so you don’t contaminate the test strips. It’s ok if some of the leaf pieces end up in the vials.

Now you’re ready to get started with the rest of the tests. It’s easiest to work with one sample at a time.  Follow these instructions to complete the remaining tests.

Alkalinity/pH/Hardness Test

1. Remove the test strip from the packet labeled, “ALK/pH/Hard”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample for one second and remove
4. Hold the test strip level and wait 10 seconds
5. Place the strip as shown in the picture and compare to the color chart for alkalinity, pH, and harness
6. Record your results in the results notebook

Total Chlorine/Copper/Nitrate/Nitrite Test

1. Remove the test strip from the packet labeled, “CL/CO/NA/NI”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample three times and remove – DO NOT SHAKE OFF EXCESS WATER
4. Hold the test strip level for 2 seconds
5. Place the strip as shown in the picture and compare to the color chart for chlorine and copper
6. Wait 45 seconds before reading the results for nitrate and nitrite
7. Record your results in the results notebook

Iron Test (Complete this test last)

1. Remove one iron reagent tablet from the foil packet and place in test vial (the reagent could alter the results of other tests which is why the iron test is completed last)
2. Place the cap on the test vial and shake for approximately one minute, until the tablet is completely dissolved
3. Remove the test strip from the packet labeled, “Iron Test”
4. Dip the strip in the sample for 2 seconds
5. Shake the strip once and wait 60 seconds
6. Place the strip as shown in the picture and compare to the color chart for iron
7. Record your results in the results notebook

Repeat all three tests for each of your samples.  When you are finished don’t forget to wash your hands with soap and water.

Results

Now that you have completed each of the tests on your four samples, it’s time to look at your results.  Ask yourself these questions:

• How did the control sample differ from the leaf water samples?
• Did one of the leaf water samples differ more than the rest?
• What results did you find the most surprising?

Record your answers on the “Notes” page.  If you are doing a science project, create a graph to show your results.  You can also use clear tape to fix the test sticks to the color charts to display your results.

Our hypothesis was that the leaves would change the composition of the water.  We suspected that they might change the alkalinity of the water or the copper levels, and they did.  What we weren’t expecting was how they would change the chlorine levels.  What was surprising here, was that the leaves actually reduced the chlorine levels.  Two of our samples reduced to chlorine to zero and the other cut it in half.  We aren’t sure exactly why this happened, but we did learn that chlorine is one of the nutrients that help plants grow.  Did any of your leaves reduce the chlorine in your samples?

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Supplies

The first thing you need to do is gather your supplies:

• Test Assured 4 Test Kit Set with TDS Meter
• 4 cups
• 3 fishy water samples
• 1 control sample
• Paper towels

Preparation

We brought out own plastic bags to the pet store to collect our samples.  They gave us water samples from three different tanks and we also asked for a sample of clean water to use as our control.  Once we got home, we transferred the water into cups.  If you don’t want to put the fishy water in your drinking glasses, you could also just set the baggies inside cups so the samples are easier to work with. Now is a good time to label your vials and list the names of your fishy water samples in the results notebook.

Testing

First, you will start with the test for total dissolved solids, using the TDS meter.  Because the meter will not fit in the test vials, it is easier to complete this part of the experiment while your samples are still in the cups.  To perform the TDS test, simply turn on the meter and submerge the prongs in the samples. Rinse the meter with clean water between each test. Record your results in the results notebook. Be sure to read the TDS meter carefully.  High readings will be noted with “x10.”

After completing the TDS test, you will need to pour your samples into the vials you labeled.  Do this over a sink and be sure to wipe up any spills, so you don’t contaminate the test strips.

Before you get started with the tests, now is a good time to make some visual observations. Take notes about how clear or cloudy your samples look.  Are there any visible particles floating in any of the samples?  These observations can be written in the “Notes” on the last page of the results notebook.

Now you’re ready to get started with the rest of the tests. It’s easiest to work with one sample at a time.  Follow these instructions to complete the remaining tests.

Alkalinity/pH/Hardness Test

1. Remove the test strip from the packet labeled, “ALK/pH/Hard”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample for one second and remove
4. Hold the test strip level and wait 10 seconds
5. Place the strip as shown in the picture and compare to the color chart for alkalinity, pH, and harness
6. Record your results in the results notebook

Total Chlorine/Copper/Nitrate/Nitrite Test

1. Remove the test strip from the packet labeled, “CL/CO/NA/NI”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample three times and remove – DO NOT SHAKE OFF EXCESS WATER
4. Hold the test strip level for 2 seconds
5. Place the strip as shown in the picture and compare to the color chart for chlorine and copper
6. Wait 45 seconds before reading the results for nitrate and nitrite
7. Record your results in the results notebook

Iron Test (Complete this test last)

1. Remove one iron reagent tablet from the foil packet and place in test vial (the reagent could alter the results of other tests which is why the iron test is completed last)
2. Place the cap on the test vial and shake for approximately one minute, until the tablet is completely dissolved
3. Remove the test strip from the packet labeled, “Iron Test”
4. Dip the strip in the sample for 2 seconds
5. Shake the strip once and wait 60 seconds
6. Place the strip as shown in the picture and compare to the color chart for iron
7. Record your results in the results notebook

Repeat all three tests for each of your samples.  When you are finished don’t forget to wash your hands with soap and water.

Results

Now that you have completed each of the tests on your four samples, it’s time to look at your results.  Ask yourself these questions:

• How did the control sample differ from the fishy water samples?
• Did one of the fishy water samples differ more than the rest?
• What results did you find the most surprising?

Record your answers on the “Notes” page.  If you are doing a science project, create a graph to show your results.  You can also use clear tape to fix the test sticks to the color charts to display your results.

The post Fishy Water – A Science Project for Kids appeared first on .

Supplies

The first thing you need to do is gather your supplies:

• Test Assured 4 Test Kit Set with TDS Meter
• 4 cups
• 3 dirt samples
• Paper towels

Preparation

To prepare for the tests, you’ll need to make your dirty water samples.  Fill the first cup with plain tap water.  This will be the control that the other samples are measured against.  Put one dirt sample in each of the remaining cups.  Fill the cups halfway with tap water.  You need enough water that the dirt can be easily mixed into the water, but avoid filling the cup too much so you don’t splash dirty water everywhere.  Once each cup has been mixed, you’ll want to wait about a half hour for the dirt to settle to the bottom.

Now is a good time to label your vials and list the sources of your dirty water samples in the results notebook.

Testing

First, you will start with the test for total dissolved solids, using the TDS meter.  Because the meter will not fit in the test vials, it is easier to complete this part of the experiment while your samples are still in the cups.  To perform the TDS test, simply turn on the meter and submerge the prongs in the samples. Rinse the meter with clean water between each test. Record your results in the results notebook. Be sure to read the TDS meter carefully.  High readings will be noted with “x10.”

After completing the TDS test, you will need to pour your samples into the vials you labeled.  Do this over a sink and be sure to wipe up any spills, so you don’t contaminate the test strips.

Before you get started with the tests, now is a good time to make some visual observations. Take notes about how clear or cloudy your samples look.  Are there any visible particles floating in any of the samples?  These observations can be written in the “Notes” on the last page of the results notebook.

Now you’re ready to get started with the rest of the tests. It’s easiest to work with one sample at a time.  Follow these instructions to complete the remaining tests.

Alkalinity/pH/Hardness Test

1. Remove the test strip from the packet labeled, “ALK/pH/Hard”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample for one second and remove
4. Hold the test strip level and wait 10 seconds
5. Place the strip as shown in the picture and compare to the color chart for alkalinity, pH, and harness
6. Record your results in the results notebook

Total Chlorine/Copper/Nitrate/Nitrite Test

1. Remove the test strip from the packet labeled, “CL/CO/NA/NI”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample three times and remove – DO NOT SHAKE OFF EXCESS WATER
4. Hold the test strip level for 2 seconds
5. Place the strip as shown in the picture and compare to the color chart for chlorine and copper
6. Wait 45 seconds before reading the results for nitrate and nitrite
7. Record your results in the results notebook

Iron Test (Complete this test last)

1. Remove one iron reagent tablet from the foil packet and place in test vial (the reagent could alter the results of other tests which is why the iron test is completed last)
2. Place the cap on the test vial and shake for approximately one minute, until the tablet is completely dissolved
3. Remove the test strip from the packet labeled, “Iron Test”
4. Dip the strip in the sample for 2 seconds
5. Shake the strip once and wait 60 seconds
6. Place the strip as shown in the picture and compare to the color chart for iron
7. Record your results in the results notebook

Repeat all three tests for each of your samples.  When you are finished don’t forget to wash your hands with soap and water.

Results

Now that you have completed each of the tests on your four samples, it’s time to look at your results.  Ask yourself these questions:

• How did the control sample differ from the dirty water samples?
• Did any of the dirty water samples contain more contamination than the rest?
• What results did you find the most surprising?

Record your answers on the “Notes” page.  If you are doing a science project, create a graph to show your results.  You can also use clear tape to fix the test sticks to the color charts to display your results.

The post Dirty Water – A Fun Science Project for Kids appeared first on .

In an emergency situation, would it be safe to drink pool water?  We decided to compare pool water, spa water, and tap water using  TestAssured’s 4 Test Kit Set for Schools and Science Fairs. This set includes 4 test kits and can be used by school students in third grade and above to complete a variety of science projects like this one.

Supplies

The first thing you need to do is gather your supplies:

• Test Assured 4 Test Kit Set with TD Meter
• Zipper sandwich bags
• Paper towels

Preparation

To prepare for the tests, you’ll need to gather your water samples.  We tested water from our local pool, a hot tub, and tap water for the control.  We found that one of the easiest ways to collect outside water samples is to use zipper sandwich bags.  You can easily label the bags, and they are large enough to allow for the TDS test.  For more stability (and less chance of spills) you can put the baggies inside mugs or cups.

Now is a good time to label your vials and write your water sources in the results notebook.

Testing

The first test you want to start with is for total dissolved solids, using the TDS meter.  The meter will not fit in the test vials, so it is easier to complete this part of the experiment while your samples are still in the baggies.  To perform the TDS test, simply turn on the meter and submerge the prongs in the samples. Rinse the meter with clean water between each test. Record your results in the results notebook.

After completing the TDS test, you will need to pour your samples into the vials you labeled.  To transfer your samples to the vials, simply snip off a small corner of the baggie to create a spout. Fill each vial to within a ¼” of the top.  Be sure to wipe up any spills, so you don’t contaminate the test strips.

Before you get started with the tests, now is a good time to make some visual observations. Take notes about how clear or cloudy your samples look.  Are there any visible particles floating in any of the samples?  These observations can be written in the “Notes” on the last page of the results notebook.

Now you’re ready to get started with the rest of the tests. It’s easiest to work with one sample at a time.  Follow these instructions to complete the remaining tests.

Alkalinity/pH/Hardness Test

1. Remove the test strip from the packet labeled, “ALK/pH/Hard”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample for one second and remove
4. Hold the test strip level and wait 10 seconds
5. Place the strip as shown in the picture and compare to the color chart for alkalinity, pH, and hardness
6. Record your results in the results notebook

 Total Chlorine/Copper/Nitrate/Nitrite Test

1. Remove the test strip from the packet labeled, “CL/CO/NA/NI”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample three times and remove – DO NOT SHAKE OFF EXCESS WATER
4. Hold the test strip level for 2 seconds
5. Place the strip as shown in the picture and compare to the color chart for chlorine and copper
6. Wait 45 seconds before reading the results for nitrate and nitrite
7. Record your results in the results notebook

Iron Test (Complete this test last)

1. Remove one iron reagent tablet from the foil packet and place in test vial (the reagent could alter the results of other tests which is why the iron test is completed last)
2. Place the cap on the test vial and shake for approximately one minute, until the tablet is completely dissolved
3. Remove the test strip from the packet labeled, “Iron Test”
4. Dip the strip in the sample for 2 seconds
5. Shake the strip once and wait 60 seconds
6. Place the strip as shown in the picture and compare to the color chart for iron
7. Record your results in the results notebook

Repeat all three tests for each of your samples.

Results

Now that you have completed each of the tests on your four samples, it’s time to look at your results.  Ask yourself these questions:

• Did the pool water or the spa water contain less contamination?
• Which sample contained the most chlorine?
• Would it be ok to drink pool water or spa water in an emergency?
• What results did you find the most surprising?

Record your answers on the “Notes” page.  You can use clear tape to fix the test sticks to the color charts to display your results for your science fair project.  You may even want to create some graphs or charts from your results.

The post Is it Safe to Drink Pool Water? – A Science Experiment for Kids appeared first on .

We used TestAssured’s 4 Test Kit Set for Schools and Science Fairs to test sparkling mineral water compared to tap water. This set includes 4 test kits and can be used by school students in third grade and above to complete a variety of science projects like this one.

Supplies

The first thing you need to do is gather your supplies:

• Test Assured 4 Test Kit Set with TD Meter
• Four cups
• Tap water
• 3 different brands of mineral water
• Paper towels

Preparation

To prepare for the tests, you’ll need to gather your water samples.  We used three popular brands of bottled mineral water and tap water for the control.  You’ll need to pour your water samples into cups for the first test.  Now is a good time to label your vials and write your water sources in the results notebook.

Testing

The first test you want to start with is for total dissolved solids, using the TDS meter.  The meter will not fit in the test vials, so it is easier to complete this part of the experiment while your samples are still in cups.  To perform the TDS test, simply turn on the meter and submerge the prongs in the samples. Rinse the meter with clean water between each test. Record your results in the results notebook.

After completing the TDS test, you will need to pour your samples into the vials you labeled.  Do this over a sink and be sure to wipe up any spills, so you don’t contaminate the test strips.

Before you get started with the tests, now is a good time to make some visual observations. Take notes about how clear or cloudy your samples look.  Are there any visible particles floating in any of the samples?  These observations can be written in the “Notes” on the last page of the results notebook.

Now you’re ready to get started with the rest of the tests. It’s easiest to work with one sample at a time.  Follow these instructions to complete the remaining tests.

Alkalinity/pH/Hardness Test

1. Remove the test strip from the packet labeled, “ALK/pH/Hard”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample for one second and remove
4. Hold the test strip level and wait 10 seconds
5. Place the strip as shown in the picture and compare to the color chart for alkalinity, pH, and hardness
6. Record your results in the results notebook

 Total Chlorine/Copper/Nitrate/Nitrite Test

1. Remove the test strip from the packet labeled, “CL/CO/NA/NI”
2. Pick up the strip on the end with no pads
3. Dip the strip in the sample three times and remove – DO NOT SHAKE OFF EXCESS WATER
4. Hold the test strip level for 2 seconds
5. Place the strip as shown in the picture and compare to the color chart for chlorine and copper
6. Wait 45 seconds before reading the results for nitrate and nitrite
7. Record your results in the results notebook

Iron Test (Complete this test last)

1. Remove one iron reagent tablet from the foil packet and place in test vial (the reagent could alter the results of other tests which is why the iron test is completed last)
2. Place the cap on the test vial and shake for approximately one minute, until the tablet is completely dissolved
3. Remove the test strip from the packet labeled, “Iron Test”
4. Dip the strip in the sample for 2 seconds
5. Shake the strip once and wait 60 seconds
6. Place the strip as shown in the picture and compare to the color chart for iron
7. Record your results in the results notebook

Repeat all three tests for each of your samples.

Results

Now that you have completed each of the tests on your four samples, it’s time to look at your results.  Ask yourself these questions:

• Was there any difference in results among the brands of mineral water?
• How did mineral water compare to tap water?
• Did the results show anything could be a health benefit of drinking mineral water?
• What results did you find the most surprising?

Record your answers on the “Notes” page.  You can use clear tape to fix the test sticks to the color charts to display your results for your science fair project.

The post What’s in Your Mineral Water – A Quick and Easy Experiment appeared first on .