This science fair project idea determines which method of hand cleansing is the most effective.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

This science fair project idea demonstrates that plants give off water.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Learn how different types of soil affect how animal tracks form in this experiment!

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

In this activity, you'll send your kindergartener on a scavenger hunt to find sounds and create a sound recording. Here's how!

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This activity allows your kindergartener to translate what they observe into a beautiful poem.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

Test whether plants can grow without sunlight and water.

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.

People have favorite flavors, but what about ants? Which ant food is the most popular?

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.