Science
Grade 3 Ecosystems & Food Chains
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100 pages on ecosystems and energy — producers, consumers, decomposers; food chains and food webs; how environmental changes affect organisms (drought, habitat loss); fossils as evidence of past life; and designing a model habitat. Aligned with NGSS 3-LS2, 3-LS4.
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Ages 8–9100 pagesInstant PDF
What's Inside
- Producers, consumers, decomposers
- Food chains and simple food webs
- Environmental change and organisms
- Fossils and past environments
Learning Outcomes
Ecosystem roles
Food chains
Environmental impact
Fossils
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