Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This science fair project idea determines the most effective method of preserving food.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

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

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This science fair project idea produces varying pitches of sound.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

This science fair project idea determines what household items are good conductors of electricity.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

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

This science fair project idea determines what household items are good conductors of electricity.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

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

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

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

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

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science fair project idea explores the different properties & interactions of sugar molecules.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!