Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

This science fair project idea explores the different properties & interactions of sugar molecules.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

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

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

In this fun experiment, we'll find out how color affects heat absorption!

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

This project examines what types of objects burn and which burn faster and cleaner.

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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Find out whether putting something on top of a plant will inhibit its growth.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.