Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

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.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

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

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

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.

This project examines the vulnerability of fruit flies, Drosophila melanigaster, to irradiation. Will exposure result in mutations?

Study the anatomy of the brain and the functions of the corpus callosum. Research split brain surgery and its impact on advances in neuroscience.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

The objective of this experiment is to evaluate the effects of acid rain on plants.

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

Discover whether a metal will expand under hot water.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

The purpose of this science project is to determine whether the amount of air in a soccer ball affects how far it goes when kicked.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Science fair project that helps visualize how the human brain functions by constructing a model of a brain.

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.