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

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

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

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

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

It's the day before the test, and you still have a ton to memorize! Sound familiar? Test memorizing techniques to help yourself out next time.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

This science fair project idea investigates whether plants can survive being frozen.

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!

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

Examine the impact of insecticides on plant growth.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

This science fair project idea explores whether talking to a plant will help it grow.

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

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.

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

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

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.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.