Meet the master of compound machines: Rube Goldberg! His wacky contraptions put a whole new spin on the use of simple machines.

Find out all about the different parts of the eyes and how they work together to make vision possible.

What is geothermal energy? Find out how we use parts of the Earth to provide us with renewable energy!

In this physical science worksheet, students will review how to calculate velocity given time and distance and then apply this process to several diverse word problems.

Hypothesis, observation, data...with so many terms, learning the scientific method can be tricky. Learn the steps by helping Dr. McSquare sort out his reports.

Create your own gravity-powered roller coaster in this creative worksheet!

Why does a metal spoon heat up faster than a wooden one? Find out in this engaging energy worksheet!