Ecosystems
Explore how living and nonliving parts interact.
General curriculum — a grade-specific version for Grade 3 is in development.
1
Parts of an ecosystem
Identify living and nonliving parts of ecosystems.
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2
Producers, consumers, decomposers
Classify organisms by role.
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3
Energy flow
Trace energy through ecosystems.
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4
Matter cycles
Describe cycles of matter in ecosystems.
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5
Ecosystem balance
Explain how ecosystems stay balanced.
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6
Changes in ecosystems
Describe how ecosystems change over time.
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7
Human impact on ecosystems
Describe human effects on ecosystems.
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8
Conservation
Describe ways to protect ecosystems.
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9
Invasive species
Explain effects of invasive species.
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10
Ecosystems review
Apply ecosystem concepts.
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