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

Students are introduced to the different types of symbiotic relationships that exist in ecosystems in this life science worksheet.

Help young scientists understand the different types of organism interactions with this life science 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!