What do a raven, a bat, and a wolf have in common? Similar skeletal structures! In this Halloween worksheet, middle-grade students will explore homologous structures in different animals. 

Why do some desert animals have large ears? Why do others have scales? Learn the answers to these questions and more with this life science worksheet!

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

Crunch the atomic numbers of different elements in this worksheet!