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

Are students studying electricity? Give them a break from the scientific nitty-gritty with this fun word search full of electricity terms!

Discover the science behind an ages-old 4th of July tradition with this firework diagram.

Learn how energy changes forms with this fourth- and fifth-grade physical science worksheet!

Become an energy investigator in this electrifying science worksheet!

Connect forms of energy to real-life scenarios in this third- and fourth-grade worksheet!

Discover different types of energy with this third- and fourth-grade science worksheet!