Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

This experiment explores how listening in to a one-sided conversation affects concentration.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

This project compares the strength of one, two, and three-ply toilet paper.

Test out various brands of permanent markers to see which one is least water soluble.

In almost every preschool classroom is a sensory table. Learn how to make one at home!

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

Science fair project that determines whether moths are attracted to one color of light more than others.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

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 project explores how well couples convey complex emotions such as envy and pride to one another solely through the sense of touch.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Find out whether a longer airplane will fly farther or a wider paper airplane.

In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.

In this experiment two environments will be compared: a room with interior design that uses correct Feng Shui versus one with incorrect Feng Shui.