Science Worksheets and Study Guides Third Grade. What are Ecosystems?

The resources above correspond to the standards listed below:

California Standards

CA.LS. Life Sciences
LS.3. Adaptations in physical structure or behavior may improve an organism's chance for survival. As a basis for understanding this concept:
LS.3.b. Students know examples of diverse life forms in different environments, such as oceans, deserts, tundra, forests, grasslands, and wetlands.
LS.3.d. Students know when the environment changes, some plants and animals survive and reproduce; others die or move to new locations.