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!

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

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

This science fair project idea determines exactly how much of an effect road grade has upon a cyclistâs speed.

How can Hooke's law explain how springs work? Learn about how Hooke's law is at work when you exert force on a spring in this cool science project.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

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

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

Explore concepts in current and coltage with these Van de Graaff generator experiments.

Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

This science experiment tests if dog saliva can really help heal wounds.

Explore the neural and mental mechanisms at play in mental imagery.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

In this design challenge, your child will create a parachute for a small toy using typical household items.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

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.

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 fair project idea determines whether dogs can be trained faster using a food reward or praise.

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

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

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?