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Environments & Ecosystems
3rd Grade
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Texas Essential Knowledge and Skills (TEKS):
3.9.A
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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
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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
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describe environmental changes such as floods and droughts where some organisms thrive and others perish or move to new locations. |
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