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.

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

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.

This simple experiment serves as an introduction to the greenhouse effect.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

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 fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

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.

In this activity, your kid has your permission to get his socks nice and filthy. In fact, it's a necessity, because those socks are going to make a garden.

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.