In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

Check out this cool science fair project idea on spectrum spinners and investigate how certain color combination can produce other colors.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

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

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

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

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Determine how wind speed affects the stability of a kite and the ease of getting it into the air.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project idea produces varying pitches of sound.

Determine which metal has the highest rate of conductivity.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project idea explores the fastest average speed a human can talk.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Science fair project that determines whether brain size is correlated with intelligence.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

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

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.