The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

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

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

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

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

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?

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

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

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

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

This project examines whether people's taste perception is influenced by what they see.

This science experiment has students test whether a snail moves faster on concrete or dirt.

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

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

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project will help students learn about non-vascular plants, such as mosses.

This project compares the strength of one, two, and three-ply toilet paper.