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This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

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 science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

This science fair project idea determines the most effective method of preserving food.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

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

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

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This project examines what types of objects burn and which burn faster and cleaner.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

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.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

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

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

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

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

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.