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This science fair project idea determines whether volunteers remember more information presented orally or visually or kinesthetically.

Examine the effect of pressure on carbonation in soda.

This project explores differences in people's reactions to images in color and images in black and white.

This science fair project idea explores whether talking to a plant will help it grow.

This science fair project compares the abilities of men and women to understand subtle communication through body language.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This science fair project idea raises awareness of a real ecological issue.

This science fair project examines the different composition of fungi and plants.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Examine whether males or females are more likely to have a higher center of gravity.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Science fair project that demonstrates how stalagmites and stalactites are formed.

This experiment will examine and precisely measure the amount of sugar in various sodas.

Can cells be frozen? This science fair project provides information to answer this question.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.