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Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

The goal of this project is to create an exciting topographical map out of dough.

This science fair project idea investigates how magnetism can defy the force of gravity.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This science fair project idea determines which method of hand cleansing is the most effective.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This science fair project teaches students the differences between fruits and vegetables.

This science fair project idea demonstrates that plants give off water.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

This science project teaches students to classify different shapes of leaves.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.