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

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.

This science fair project teaches students the differences between fruits and vegetables.

The purpose of this science fair project is to build a basic radio.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

This science fair project idea examines the reason boats are shaped and engineered.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

This science project allows students to study the psychology of happiness.

This project determines what category of person is most likely to be ticklish.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

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

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

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

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

This project explores ways to prevent static electrical shocks.

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

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

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

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

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

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Word color association is just a fancy way to talk about the way we connect colors with words.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.