Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

This science fair project idea observes products available in the school cafeteria and waste produced by these products.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

This science fair project will help students learn about non-vascular plants, such as mosses.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this science fair project, students use the streak test to tell minerals apart from each other.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

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

This science fair project examines how seeds hitchhike on animals and clothing.

Do different types of oil mix or stack? Find out in this science fair project idea!

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

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