Science Matters
Excretory System
Not a waste of time or energy! Introduce young scholars to one of the waste eliminating systems of the body in a hands-on lesson exploration. The 14th lesson in a 21-part series asks groups to build models of the excretory system...
Curated OER
Organ Systems: Excretory, Digestive, Immune, and Nervous
Eighth graders identify and describe the components of various body systems. They create vocabulary flash cards identifying the excretory, digestive, immune, and nervous systems and describing their functions. Students complete a...
Curated OER
What a Waste!
Fourth graders explore the kidney, bladder, and function of the excretory (urinary) system.