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This science fair project idea determines if the temperature of rubber effects how high it bounces.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

Science fair project that demonstrates how stalagmites and stalactites are formed.

This science fair project idea provides evidence that air is everywhere and takes up space.

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

How powerful is the reaction between baking soda and vinegar? Find out here!

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

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

Do you think heat can affect a plant's growth rate?

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.

How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Students identify variables that affect the duration of high school romances and analyze data to predict the success or failure of ongoing relationships.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

In this experiment you will use plastic and magnets to test your local soil composition.

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

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

In this challenge, students are tasked with creating a car that can be powered by a balloon!

Does nail polish really slow the growth of nails? Explore in this science fair project idea.