Fun Colored Foam Science Experiments for Kids

Colored foam science experiment and activity for preschool children.Science experiments help kids & preschoolers to learn about science through observing different reactions that occur using a variety of items and materials. This colored foam science experiment is a perfect example.

Learning how things work & why they work, and cause and effect by way of various fun, simple activities and experiments is a very educational experience for children.

You can find many science ideas for children & preschoolers on this website, as well as by simply taking a good look around at things in your every day life.

Great learning ideas are all around us each and every day.


Sometimes we can take simple learning opportunities for granted that can be used for teaching children.

We see strange occurances and scientific things happen regularly. (I.e. Toothpaste turning into suds with water and friction.) These simple everyday experiences can be used to make fun activities for your preschool & kindergarten kids to help them learn and observe. Take time to discuss and document changes and things happening during your experiments.


Colored Foam Science Activity for Preschoolers

This preschool science activity/experiment creates a cool, colorful reaction that preschoolers and young children will find entertaining and exciting as they see it happening.

You may want to implement this activity in an area where you don’t mind if you make a bit of a mess. Some foam overflow may occur with this activity, depending on the size of the mixing container you plan on using.


This Foam Science Activity Requires:

  • 1 Mixing Bowl or Mixing Container
  • Baking Soda
  • Food Coloring
  • White Vinegar


What to Do:

  1. Add a couple of tablespoons of Baking Soda to the container.
  2. You can then add a few drops of food coloring, or a few different colors of food coloring to the baking soda.
  3. Next, add a half a cup of white vinegar to the baking soda and watch the reaction.
  4. Take your time and describe what you are doing in each step. Ask them what they see and hear as the foam appears and grows. Talk about the smell of the vinegar. Does baking soda smell? Find out.
  5. Ask open ended questions such as, Why do you think that happened? What do you like about this experiment? What don’t you like about this experiment? What other colors should we use to try this experiment?
  6. Try combining colors together to add more fun and learning to this activity.


*Be careful not to splash the vinegar as it could get into the eyes of the children.

Always supervise preschool children when doing any activities.