Showing Results for add and subtract

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Making your own glass cleaner is easy, effective and inexpensive!

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

This surprisingly good glue recipe comes from common kitchen items.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

I scream, you scream, we all scream for homemade spearmint ice cream!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

How powerful is the reaction between baking soda and vinegar? Find out here!

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!