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This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

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.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

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

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

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

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Discover which fabrics shrink the most in the wash and why.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

Construct batteries that make electricity from fruits with this fun science fair project.

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

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

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

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

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