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.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

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

Is your child a nature nut with an eye for creative, green-friendly projects? Introduce them to this amazing DIY bird feeder!

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?