Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Should you use âFITâ Fruit and Veggie Wash or plain water to wash your produce? Find out in this science fair project idea.

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

Free science fair project idea examining how different types of water affect plant germination and growth.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

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

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

This science research project challenges students to think of more effective lobster farming methods.

This project compares different liquids and the freezing, melting and boiling points of liquids.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Find out which type of sponge holds the most water.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Will people perceive your intelligence differently depending on your hair color? Find out in this science fair project idea!

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

The goal of this science fair project was to evaluate the ElectroMagnetic Field produced by Radio Frequency Identification transmitters.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Make this easy composting dessert and then enjoy the yummy results!