Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

This experiment explores whether caffeine improves athletic performance.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

This social science experiment endeavors to determine whether certain types of animals provide greater physical and mental health benefits to their owners.

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Use a dichotomous key to identify plants or animals.

Determine how we can separate the components of a solution

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

In this experiment, you will evaluate whether or not a diet that is supplemented with "brain-enhancing" foods can help improve memory.

A mixture of botany, exploration, Abstract Art and Pop Art color theoryâthis activity never gets dull! Start by exploring outdoors and finish with indoor art.

This science fair project idea compares the cuteness reaction between genders.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

This science fair project idea demonstrates how our fingers prune when in water.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

Consult astronomers for opinions and advice. Devise a mathematical argument regarding the probability of other planets supporting extra-terrestrial life.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.