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Easy Experiments – Making Color Disappear

May 23, 2016 By Vicky

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Most kids have a natural curiosity about the world and the way things work. That makes it easy to teach them some basic science concepts in fun hands-on ways. In the past we have done a Magnet Exploration which proved to be very engaging. Today, I am sharing another one of our Easy Experiments. Making Color Disappear seems very magical for kids, but there are some scientific concepts at work.

My kids love easy experiments like this one where they made color disappear. Such a fun STEM activity!

Easy Experiments

You will need:

  • See through cups
  • Water
  • Food Coloring
  • Bleach
  • Pipette


easy experiments

Like most easy experiments, this requires adult supervision. I would say it requires extra adult supervision because of the bleach. Do not let your child handle the bleach. Anytime bleach is added make sure an adult is adding it and that children are not inhaling any fumes.

With that out of the way, fill up 4 cups halfway with water. Next have your child add one drop of food coloring to each cup. Most food coloring packages come with four colors, so we used one drop of each color in each cup.

easy experiments

Have your child observe and describe the changes that occurred in the water.

easy experiments

Next, ask if they think it is possible to make the color disappear from the cup. My kids said no, so we decided to try and make the color disappear by using bleach.

I filled up a small cup with bleach and I used a pipette to add drops of bleach to the water cups. We waited to see what would happen. When I added one pipette full of bleach, nothing happened to the color. After I added a second pipette, we started to notice the yellow color getting lighter.

easy experiments

After I added a third pipette of bleach the yellow color almost completely disappeared. The kids were amazed! Why did this happen? You can learn more about how bleach works here.

easy experiments

We had less luck with the others colors. They each just turned into lighter shades. Interestingly, the blue and green cups turned almost identical.

easy experiments

What I really love about doing easy experiments with the kids is that it often evolves into something else when the kids come up with more questions. After the color disappeared from the yellow cup, the kids wondered what would happen if we added food coloring back to the cup which now contained water and bleach. I had no idea, so we decided to give it a try. I filled one cup up with just water and we added a few drops of red food coloring. As you can see the color dispersed and turned the water red.

But when we added some food coloring the bleach/water cup, the food coloring stayed in one spot and did not disperse. My kids were impressed with the cool effect this produced.

easy experiments

If your child loves easy experiments check out:

Simple Science for Preschoolers

simple-science-for-preschoolers.jpg

Index Card Chain

science-experiments-for-kids-index-card

If you are looking for more fun activities for kids, check out Green Kid Crafts, an earth friendly monthly craft subscription box for kids that sparks creativity while teaching kids a respect and love for the environment. These boxes are themed and each month will be filled with fun projects and creative activities than can be enjoyed by kids from ages 3-10.
Since Green Kid Crafts is an earth friendly company, they use sustainable, safe materials in all of their products. They also give a portion from each sale to environmental non-profits. Learn more about a monthly subscription of fun!

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Vicky

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Filed Under: Learning Activities, science

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  1. Ultimate List Of 100 Cool Science Experiments For Kids - Kids Love WHAT says:
    April 28, 2020 at 9:41 am

    […] is a perfect activity for parties and playdates. But an adult should handle the bleach to avoid unnecessary […]

Hi, I'm Vicky, founder and content creator at Mess For Less. If you are looking for play and learning activities for kids, kid friendly food, parenting tips and general family fun, you will find it at Mess For Less. I invite you to learn more about me or drop me a note. Thanks for stopping by!
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