Learn how different types of soil affect how animal tracks form in this experiment!

Do you think heat can affect a plant's growth rate?

Learn about the horizontal and vertical motion of a projectile in this cool physics science fair project idea for advanced middle and high school students.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Science fair project that determines how your mirror image differs from your actual image and how virtual images are constructed.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

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

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.

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.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.