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

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

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.

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

Learn about this simple machine and make a pulley of your own to use for fun science trials.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

This science fair project idea investigates how the shape of an object affects drag.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

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

Use pepper and soap to discover some fun facts about the properties of water.

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.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

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

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

In this science fair project, students use the streak test to tell minerals apart from each other.

Plants and light seem to be good buddies, but how far does the friendship really go?

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

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