This science fair project idea investigates the hardness property of minerals.

This science fair project idea explores the different properties of matter.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

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

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science fair project idea identifies the properties of soap bubbles and invents a new or improved bubble solution.

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

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

There are hundreds of properties in rocks which you can describe, so get your geology goggles on and get ready to rock your child's science skills.

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Science fair project that determines whether mass and weight are the same or different.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Be active while learning about American history with this twist on the classic running game "Capture the Flag."

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

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

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

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.