Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This science fair project idea investigates if fats add to the flavor of food.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Using a toy race car kids create a visual model of the Doppler Effect.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

This biodiversity project examines the biodiversity in your own backyard.

Start your toy engines -- this is going to be a fast and friction-filled race!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea examines the reason boats are shaped and engineered.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

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

Cleaning can be a chore, but not with this sudsy experiment!

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

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

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

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.