Determine whether butterflies like to drink sugar water, salt water, or plain water.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

This science fair project idea examines which type of insulation holds in the most heat.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Have your child kick off their summer vacation by making a miniature water slide!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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 science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

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 fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

This project investigates the affect of storage temperature on microwave popcorn.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.