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Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

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

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

Determine the efficiency of multi-tasking by comparing how long it takes students to complete different tasks. Collate data, complete Summary Chart.

The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

In this science fair project you will make a model of a cell membrane using very simple material.

Here's a science and nature activity to help your kindergartener get outdoors and learn about the structure of leaves.

Are you able to endure long periods of exercise? Find out if snorers can exercise longer than non-snorers.

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

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

This experiment investigates whether there are certain sounds that affect men and women differently

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.