Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

This science fair project idea explores whether white light can be separated into different colors.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Science fair project that determines whether mass and weight are the same or different.

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

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

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

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

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

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

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

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

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

Test whether plants can grow without sunlight and water.

This science fair project idea investigates whether plants can survive being frozen.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

This science fair project idea explores the egg's thin membrane.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.