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This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

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

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project idea examines which type of insulation holds in the most heat.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Science fair project that examines condensation and the conditions needed in order for dew to form.

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

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Construct batteries that make electricity from fruits with this fun science fair project.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

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 cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

With a clear bottle and a few plastic straws, you can easily make a hummingbird feeder and demonstrate the effects of atmospheric pressure at the same time!

This science fair project will help students learn about non-vascular plants, such as mosses.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.