This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Help your own young scientist tackle the wonders of static electricity from the comfort of his own home!

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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

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

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

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!

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.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

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

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!

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

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.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.