3.9.a 3.9.b 3.9.c SCIENCE.3.5.e SCIENCE.3.12.a SCIENCE.3.12.b SCIENCE.3.12.c

Environments & Ecosystems 3rd Grade

Texas Essential Knowledge and Skills (TEKS): 3.9.a
observe and describe the physical characteristics of environments and how they support populations and communities of plants and animals within an ecosystem;
Texas Essential Knowledge and Skills (TEKS): 3.9.b
identify and describe the flow of energy in a food chain and predict how changes in a food chain affect the ecosystem such as removal of frogs from a pond or bees from a field; and
Texas Essential Knowledge and Skills (TEKS): 3.9.c
describe environmental changes such as floods and droughts where some organisms thrive and others perish or move to new locations.
Texas Essential Knowledge and Skills (TEKS): SCIENCE.3.5.e
investigate the flow of energy and cycling of matter through systems;
Texas Essential Knowledge and Skills (TEKS): SCIENCE.3.12.a
explain how temperature and precipitation affect animal growth and behavior through migration and hibernation and plant responses through dormancy;
Texas Essential Knowledge and Skills (TEKS): SCIENCE.3.12.b
identify and describe the flow of energy in a food chain and predict how changes in a food chain such as removal of frogs from a pond or bees from a field affect the ecosystem;
Texas Essential Knowledge and Skills (TEKS): SCIENCE.3.12.c
describe how natural changes to the environment such as floods and droughts cause some organisms to thrive and others to perish or move to new locations; and

Environments & Ecosystems