This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Using a toy race car kids create a visual model of the Doppler Effect.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Slip some science into storm watching with a homemade rain gauge!

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Help your child make a beautiful homemade sandcastle that will last!

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

This project determines what category of person is most likely to be ticklish.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Science fair project that examines condensation and the conditions needed in order for dew to form.

This science fair project idea investigates how magnetism can defy the force of gravity.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

This science fair project idea explores how length affects the weight a bridge can hold.