In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

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.

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

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

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

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

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

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

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.

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

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

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

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

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

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

Construct batteries that make electricity from fruits with this fun science fair project.

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.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

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

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

In this project students experiment with making music using only glasses of water.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.