Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

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

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

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

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Discover how and which salt melts ice the quickest.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

In this science fair project, students make their own rain gauge to measure rainfall.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

This science fair project idea investigates how magnetism can defy the force of gravity.

This science fair project idea explores the different properties of matter.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

In this fun activity, your child will create their very own solar oven to bake s'mores!

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

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

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

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.