This science fair project idea experiments with spinning color wheels and optical illusions.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Learn how different types of soil affect how animal tracks form in this experiment!

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

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

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