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Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

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

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

This science fair project idea determines if the color of light affects the growth of plants.

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 fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

The goal of this fun science experiment is to explore the limitations of sight and learn working of the human eyes.

Science fair project which determines whether your current calorie intake will cause you to lose or gain weight over time.

This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

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.

Determine whether carpet placed on a lawn will kill grass and weeds. Choose an area of lawn that you would like to remove, record grass that is dead or dying.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Plants and light seem to be good buddies, but how far does the friendship really go?

This science fair project idea explores if objects dropped from a high distance will equal a greater impact force than the object dropped from a low distance.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

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

2011 VIRTUAL SCIENCE FAIR ENTRY: The objective of this science fair project is to develop a microcontroller and circuit that can conduct electricity.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

This science project researches the correlation between barometric pressure and wind velocity.