How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.

This science fair project idea determines if females or males tend to do better on optical illusion tests and whether certain age groups also do better.

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

This project tests the hypothesis that dark colors absorb more heat than light colors.

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

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 science fair project idea tests for the existence of an ability known as remote viewing.

This science fair project idea lets you build your own wind tunnel and tests different models of paper airplane.

Science fair project that examines oxidation, reduction and chemical indicators by testing for the presence of the iodide in salt.

Riddles about two trains passing in the night are often featured on SAT tests. Help break these problems down into five easy steps.

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

This science fair project idea tests the effect of heat- at varying temperatures- on the viability of biological enzymes.

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

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

In this project, different brands of microwave popcorn are tested and compared.

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

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

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

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

In this project, several food items are tested to determine whether they contain starch.

This experiment investigates if stress alters body temperature.

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