Science Worksheets and Study Guides Seventh Grade. Ecosystems, food chains and food webs

The resources above correspond to the standards listed below:

Virginia Standards

VA.7-8. Virginia 2010 Science Standards of Learning
LIFE SCIENCE
LS.5. The student will investigate and understand the basic physical and chemical processes of photosynthesis and its importance to plant and animal life. Key concepts include
LS.5.c) Photosynthesis as the foundation of virtually all food webs.
LS.6. The student will investigate and understand that organisms within an ecosystem are dependent on one another and on nonliving components of the environment. Key concepts include
LS.6.a) The carbon, water, and nitrogen cycles.
LS.6.b) Interactions resulting in a flow of energy and matter throughout the system.
LS.6.c) Complex relationships within terrestrial, freshwater, and marine ecosystems.
LS.6.d) Energy flow in food webs and energy pyramids.
LS.8. The student will investigate and understand interactions among populations in a biological community. Key concepts include
LS.8.a) The relationships among producers, consumers, and decomposers in food webs.
LS.9. The student will investigate and understand how organisms adapt to biotic and abiotic factors in an ecosystem. Key concepts include
LS.9.a) Differences between ecosystems and biomes.
LS.9.b) Characteristics of land, marine, and freshwater ecosystems.
LS.9.c) Adaptations that enable organisms to survive within a specific ecosystem.

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