K12 Reader
Tissues, Organs and Systems
Young scientists are introduced to the connections among cells, tissues, organs, and systems in a life science reading comprehension worksheet that asks them to respond to a series of questions based on the passage.
Curated OER
Backyard Bugs
Explore the concept of scientific classification and the similarities and differences between plant and animal species. Your class will participate in hands-on activities by investigating dichotomous keys and classifying their shoes. To...
Curated OER
Living vs. Non-Living Things
Fourth graders describe the characteristics that determine if something is living, dead, or non-living. They determine the difference between living and non-living things. Students determine if an object is living or non-living and...