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.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

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

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

Check out this cool science fair project on identifying rocks and minerals for kids.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

How well can people recall what they have observed. Test your knowledge in this fun experiment.