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Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this experiment two environments will be compared: a room with interior design that uses correct Feng Shui versus one with incorrect Feng Shui.

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

Students identify variables that affect the duration of high school romances and analyze data to predict the success or failure of ongoing relationships.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

Explore how you can achieve magnetic levitation with the Meissner Effect! This cool science project explains formation and applications of a superconductor.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

This science fair project idea designs safe bicycle routes using GPS.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

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

Science fair project that creates fog using bottles of hot and cold water.

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

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In this project students experiment with making music using only glasses of water.

In this science fair project you will make a model of a cell membrane using very simple material.

Construct and experiment with a periscope using reflected light rays to gather an image.

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

This project involves the programming and development of a 3D Rubik's Cube application using C++.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

Evaluate whether people can raise the temperature of their finger using the power of their thoughts.

Study emulsifiers and learn how they are used in food science, medicine, soaps and cosmetics. Identify which materials are created using an emulsifier.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.