In this CD hovercraft science project, students will construct their own DIY hovercraft.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science fair project idea produces sounds by creating vibrations using different objects.

Examine the effect of pressure on carbonation in soda.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

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

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

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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.

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.

Discover which fabrics shrink the most in the wash and why.

This science fair project idea identifies trees using a dichotomous key.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

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

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

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.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

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

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project examines how seeds hitchhike on animals and clothing.

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

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.