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This project compares the strength of one, two, and three-ply toilet paper.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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

Making your own glass cleaner is easy, effective and inexpensive!

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

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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 investigates how the height at which a pendulum is released affects the length of time it continues.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Create a bee garden to help shelter bees in your area.

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

This science fair project idea investigates whether plants can survive being frozen.

How powerful is the reaction between baking soda and vinegar? Find out here!

This science fair project idea explores substances that cause a bubble to last longer.

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