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

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

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

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.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

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

In this project, a basketball containing different psi is dropped to see how well it bounces.

This science fair project idea investigates whether air has mass and weight.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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 teaches students about wilting and browning of salad greens.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.