Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Read on this high school science fair project idea to get basic information on the process of heat transfer and the conditions under which the transfer occurs.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

Science fair project that examines the benefits of the plant enzyme: pectin methyl esterase (PME). Where is PME found in the plant? What does it do chemically?

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

Science fair project that examines the effects of soap on the surface tension of water. How does soap affect the surface tension of water?

Determine how we can separate the components of a solution

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Does your child know that salt water conducts electricity? This simple experiment will show how salt water acts as a conductor to electrical currents.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Looking for a way to help your teen explore the fun side of physics? How about a round of Saturday morning cartoons?

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.