CK-12 Foundation
Ck 12: Life Science: Bird Reproduction
[Free Registration/Login may be required to access all resource tools.] How do birds reproduce? We know that chickens lay eggs. But how do they do that? Learn more about bird reproduction in this learning module produced by CK-12.
CK-12 Foundation
Ck 12: Life Science: 1.8 Characteristics of Life
Discover the five characteristics that all living things have in common.
Michigan Reach Out
Reach Out Michigan: Being Alive
This site provides a basic lesson plan that classifies objects as alive or not alive. Good for early elementary.