Leave your computer on 24/7. Will this lead to to more frequent crashes, freezes, and a slower processing speed? Find out in this science fair project idea.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

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.

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

Study history of aerodynamics of arrow design to create a perfect arrow. Test arrows by shooting at an archery target.

Consult astronomers for opinions and advice. Devise a mathematical argument regarding the probability of other planets supporting extra-terrestrial life.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

Study the effect of music on random rote memory. Examine the practical application of music in learning and education.

Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.

Study blind spots, run experiments in blind spot detection, design an original blind spot experiment, test your design on volunteers

The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

Research long-term effects and draft a questionnaire about frequency of marijuana use and average annual income. Interpret findings in a detailed report

Research active ingredients in anti-aging creams. Test skin creams on volunteers, document the effectiveness of the creams with before an after photographs.

Research information on vitamin content in foods, Examine the effect of vitamins, test organic samples of fruits, meats, grains for vitamin content.

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

Determines the extent that high school GPA predicts future income. Survey volunteers, divide GPA into 5 categories, compare income levels with GPA

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

Determine how good we are at direct and indirect observation.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

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

Research responsibilities of physicists, and common thinking patterns. Devise a questionnaire that measures career aptitude in physics.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.