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Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

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

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This science fair project idea explores whether a person's ability to see under very dim lighting conditions diminishes with age.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

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.

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

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.

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

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.

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.

Science fair project that determines whether moths are attracted to one color of light more than others.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

This science fair project investigates why the number of visible stars changes from place to place.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

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