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

The resources above correspond to the standards listed below:

Pennsylvania Standards

PA.3. Science and Technology and Engineering Education
3.1. Biological Sciences
3.1.A. Organisms and Cells
3.1.3.A3. Illustrate how plants and animals go through predictable life cycles that include birth, growth, development, reproduction, and death.
PA.4. Environment and Ecology
4.1. Ecology
4.1.3.C. Identify sources of energy.
4.1.3.D. Identify organisms that are dependent on one another in a given ecosystem.
4.1.3.D.1. Define habitat and explain how a change in habitat affects an organism.
4.1.3.E. Identify changes in the environment over time.
4.2. Watersheds and Wetlands
4.2.3.C. Identify plants and animals that live in lakes, ponds, streams, and wetlands.