Have you ever wondered why manhole covers are round? It's a good thing to know -- big companies sometimes ask that question in interviews.

Listen closely! Do you hear anything? Identify examples of sound energy in this kindergarten and first-grade worksheet!

Dive into the electrifying concept of electrical energy in this colorful worksheet!

Determine whether items are hot or cold in this cut-and-paste activity for kindergarteners and first graders!

Unscramble key vocabulary words about energy and collisions with this engaging science worksheet!

Introduce your budding scientist to chemical reactions with this simple and fun science experiment!