In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

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

In this project children practice the scientific method while playing with puffy paint.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

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

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

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 investigates the affect of storage temperature on microwave popcorn.

This classic children's game demonstrates how sound travels through air vs. through a solid.

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.

This project determines what category of person is most likely to be ticklish.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Make a backbone model to explore human anatomy and life science.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

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

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

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?

Using a toy race car kids create a visual model of the Doppler Effect.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

This experiment challenges students to forecast the weather based on the surrounding areas' weather.