Examine the effect of pressure on carbonation in soda.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

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

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science fair project idea examines the reason boats are shaped and engineered.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

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.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

The goal of this project is to create an exciting topographical map out of dough.