Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

This experiment evaluates if personality influences whether a person prefers dogs or cats.

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

In this science fair project, students evaluate if astrological signs provide clues about people's personalities.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

This experiment evaluates if personality affects the type of movies that people prefer.

This experiment uses personality assessments to evaluate the prevalence of specific character traits in left-handed and right-handed people

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

This science fair project idea determines how your body responds to allergies.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

In this science fair project, students evaluate test subjects to determine if certain personality traits are more common in frequent users of social media.

This experiment uses personality assessments to evaluate if certain personality traits are more common in people with unusual first names.

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

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

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Enlisting the cooperation of your teenager to help prepare your household for an emergency is the perfect way to get set, fast.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

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

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.