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Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

Design and build a balloon rocket from an existing design. Think of the ways in which existing designs can be improved, new practical applications

This middle school project examines the strength of horizontal versus vertical pointing eggshells.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Discover which battery composition (type) lasts the longest.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Science fair project that explores the phenomenon of Non-Newtonian fluids by exerting force on different materials.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This classic children's game demonstrates how sound travels through air vs. through a solid.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Science fair project idea helps conceptualize probability. Compare probabilities and outcomes of cards drawn from a standard playing deck.

This experiment will examine and precisely measure the amount of sugar in various sodas.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

This science project examines the history of earthquakes and what we can do to prevent future disasters.

Science fair project that demonstrate how abrasions are formed on rocks in nature and the variations between types of rocks.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

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

This science fair project idea explores how length affects the weight a bridge can hold.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.