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The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

This science fair project idea determines whether eating before or after exercise is more beneficial to health and performance.

Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

This science fair project idea studies whether eating a hearty breakfast before and exam will get them better test scores.

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

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

This science fair project evaluates if and how eating a large meal affects ability to perform mental tasks.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

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

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

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.

Research active ingredients in anti-aging creams. Test skin creams on volunteers, document the effectiveness of the creams with before an after photographs.

Study the effect of music on blood pressure. Compare blood pressure readings before and after the listening session. Analyze results, write a detailed report.

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.

This project compares the strength of one, two, and three-ply toilet paper.

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

In this project, you will observe and record changes in sunspots over two weeks.

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This science fair project idea focuses on two classes of sugars monosaccharides (fructose) and disaccharides (sucrose or table sugar).

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.