How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Science fair project that examines condensation and the conditions needed in order for dew to form.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Plants and light seem to be good buddies, but how far does the friendship really go?

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Learn about this simple machine and make a pulley of your own to use for fun science trials.

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

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

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

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.