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.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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

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.

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.

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

This science fair project will help students learn about non-vascular plants, such as mosses.

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

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Cleaning can be a chore, but not with this sudsy experiment!

This science fair project teaches students about wilting and browning of salad greens.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

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

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

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