In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

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

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

In this design challenge, your child will create a parachute for a small toy using typical household items.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Show your child the solar system and let them explore the stars and space by creating a painting. It's a fun and easy way capture your child's imagination.

In this activity your child will create their very own marble maze!

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Discover how and which salt melts ice the quickest.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

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

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

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

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

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

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.