CK-12 Foundation
Ck 12: Third Grade Science: Life Science: Plant Reproduction and Life Cycles
[Free Registration/Login may be required to access all resource tools.] Read about the processes of sexual reproduction in flowering plants, including pollination, fertilization (seed production), seed dispersal, and germination.
CK-12 Foundation
Ck 12: Fourth Grade Science: Life Science: Habitat Destruction
Looks at ways plants and animals, including humans, can impact the environment in this learning module.