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

Explore the difference between asexual and sexual reproduction in organisms with this middle school science worksheet!

Discover how animal behaviors increase the probability of successful reproduction and offspring survival with this middle school science worksheet!

Your child may have heard of the Tasmanian devil from a cartoon or from a friend at school, but this worksheet will show him the real Tasmanian devil.

Explore the anatomy, physiology, and overall function of the sensory nervous system with this life science worksheet! 

Students use a food web to identify the roles of organisms in an ecosystem and draw conclusions about the cycling of matter and flow of energy.

Learn about the features of plant and animal cells in this compare-and-contrast worksheet!