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.

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 will teach you more about the foods that you eat, and learn which ones are healthier choices.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

In this experiment we will be determining whether birds prefer certain colors of seed.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This science fair project idea explores whether white light can be separated into different colors.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

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

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

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Find out whether packaged seeds actually do expire in this new science fair project idea.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

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.

This project explores ways to prevent static electrical shocks.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

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

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

This project examines whether people's taste perception is influenced by what they see.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.