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.

Engineers in training can get started with this simple wheel-and-axle construction activity.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

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

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

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!

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

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.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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.

If your child aspires to be the next Frank Lloyd Wright, we've got some tips on building sand castles that last.

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

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

Slip some science into storm watching with a homemade rain gauge!

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

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