This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

This science fair project idea examines the reason boats are shaped and engineered.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Science fair project that determines whether mass and weight are the same or different.

Construct batteries that make electricity from fruits with this fun science fair project.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.