Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

This science project examines the history of earthquakes and what we can do to prevent future disasters.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

This craft is an excellent way to learn about African-American history, and it also provides fine motor practice.

How fast is the wind blowing? This science experiment provides step-by-step instructions to help you answer this question.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project evaluates if and how eating a large meal affects ability to perform mental tasks.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

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.

This project examines whether sugar substitutes are as sweet as real sugar.

This science fair project idea demonstrates sonar mapping of the ocean floor.

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.

Determine whether the application of Febreeze will lower the bacterial count.

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

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

Illustrate the idea of light refraction with this exciting and mystifying experiment.

Compare different remedies for cooling the mouth after eating spicy food.

Take the art making outside: have your first grader make a clay relief sculpture of the natural world. This is a great activity for summer.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.