With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

This science fair project idea investigates the difference in reaction times between boys and girls.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!