In this science fair project, students create their own miniature salt flats at home.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

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

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

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.

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.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

This project investigates the affect of storage temperature on microwave popcorn.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Learn whether writing things down really makes things easier to remember.

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.

In this science fair project you will make a model of a cell membrane using very simple material.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.