The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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

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

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

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

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

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

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

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Test whether plants can grow without sunlight and water.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

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 exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

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.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

Help your child celebrate the summer and the sun by making a sandy seascape.

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

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

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