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Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Science fair project in which you will graft branches from different fruit tree onto a root stalk.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

First graders are learning to think like scientists. What better place to start, then by raising tadpoles? This hands-on activity explores science in action!

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

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!

Here's how you and your teen can stage your own formal debateâbeyond arguing why chores are unethical! Formal debates improve teens' critical thinking skills.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

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 which uses a camera to observe the surface of a balloon in the moment of its explosion.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

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

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.