In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

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

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

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

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

Get a cool middle school chemistry project idea on how to determine whether a physical or a chemical change has taken place.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

This science fair project idea explores which fruit molds the fastest.

Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This biodiversity project examines the biodiversity in your own backyard.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

This science fair project idea provide quantitative data about how well the use of ASL ( American Sign Language) works in communicating with babies.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.

This science fair project idea explores how water and ice can change the form of rocks.

Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

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