Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

Observe which kind of fresh long-stemmed flower will last the longest after being picked.

Examine the impact of insecticides on plant growth.

Find out whether packaged seeds actually do expire in this new science fair project idea.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

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.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

This science fair project idea designs safe bicycle routes using GPS.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

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.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Science fair project that determines whether spreading a moss soup over an area increases moss growth.

This science fair project idea explores how length affects the weight a bridge can hold.

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

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

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

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Free science fair project idea that examines the ergonomics of your environment. Redesign your living space to be better suited to your lifestyle.

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

This science fair project studies which color(s) of flowers butterflies & bees are attracted to and if color plays a role in flower selection for pollination.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Can the force of air be used to propel a vehicle? This science experiment provides step-by-step instructions to help you answer this question.

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

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

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.