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

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

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.

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

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

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.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

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

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.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Make a spring collage with your child to get them outside and those creative juices flowing!

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Construct and experiment with a periscope using reflected light rays to gather an image.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

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.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

What happens when colored beams of light mix? You might be surprised.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

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

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

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