Study how we perceive color by exploring optical illusions such as pointillism, digital images, and Ishihara tests.

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

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This science experiment tests if dog saliva can really help heal wounds.

This science fair project idea tests the efficiency of short term memory.

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

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

Science fair project that tests whether cats have a preference for organic food.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

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

This experiment tests which gender is better at catching how a magician performs his tricks.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Science fair project which tests which antacids are most potent by measuring how well they neutralize the acid in lemon juice.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

This science fair project idea tests whether tall people have the ability to swim faster than people of average and shorter heights.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Science fair project idea examines what is remembered from high school education. Formulate and administer high school curriculum tests to adults over 21.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

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

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

This experiment will evaluate if chewing gum affects students' test performance.

This middle school science fair project evaluates test subjectsâ ability to determine what a person is feeling by reading their facial microexpressions.