An animal cell is made up of many different organelles—color them all in this middle-grade worksheet! 

Students explore the mechanics of the respiratory system in this life science worksheet for middle school.

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. 

Spot the saboteur by testing DNA in this exciting middle-grade worksheet!