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This science fair project idea determines whether eating before or after exercise is more beneficial to health and performance.

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

In this science fair experiment about recycling, demonstrate how the wax from a candle can be reused to make another candle.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

In this science fair project, students investigate how different colors influence appetite.

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

This science fair project researches the most effective method to cut an onion and stay tear-free.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Test the effects of left and right handedness on writing speed and penmanship. Volunteers hand-copy the same paragraph of text, which samples look neater?

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

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

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

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 cool physics demo illustrates the simple harmonic motion of a pendulum while teaching kids the important concepts of potential and kinetic energy.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

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.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This science project challenges students to study the salt content in tap water and learn about electrochemistry.