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Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

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

Will the shape of an ice cube impact how fast the ice melts?

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

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

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

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.

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

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

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.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science fair project idea produces varying pitches of sound.

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.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?