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In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

Who knew that nature could get so crafty? Show your kindergartener how to collect and morph pinecones into a whole team of personalized pinecone people.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

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

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.

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.

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!

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 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.

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.

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