Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.

Science fair project that determines whether wireless networks damage living plants. Are WiFi radiation hazardous to your health?

Build a bird feeder science craft that brings birds to your yard, and a smile to the whole family's face.

Test your skills as a weather forecaster, and learn some science terms on the way!

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

This science fair project idea determines how your body responds to allergies.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

This science fair project idea investigates whether rocks containing geodes can be determined from the outside.

Does 100% Fruit Juice have more Vitamin C than juice with artificial ingredients? Find out in this science fair project idea!

This experiment evaluates whether the phenomenon of "choice blindness" occurs more often with men or women.

Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

Use sticks and stones to create create an outdoor version of tic-tac-toe!

This experiment evaluates if people of a specific gender or age more likely have an elevated number of taste buds, allowing them to taste what others cannot.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Examine the connection between temperature and chemiluminescence.

Science fair project that examines the relationship between fluid flow rate, pressure, and resistance.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

This project explores how well couples convey complex emotions such as envy and pride to one another solely through the sense of touch.

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