This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Discover how and which salt melts ice the quickest.

The project investigates how water and movement affects erosion.

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

The project determines determine if a sports drink affects the heart rate of a student athlete during exercise.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

In this science fair project, young children notice and track changes in trees throughout the year.

The goal of this project is to create an exciting topographical map out of dough.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Word color association is just a fancy way to talk about the way we connect colors with words.

In this project, different brands of microwave popcorn are tested and compared.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

In this experiment, the weight of aluminum cans will be compared.

People have favorite flavors, but what about ants? Which ant food is the most popular?

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

The objective of this science fair project is to investigate salt water density.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?