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