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

The resources above correspond to the standards listed below:

Maryland Standards

MD.3.0. Life Science: The students will use scientific skills and processes to explain the dynamic nature of living things, their interactions, and the results from the interactions that occur over time.
3.E.1. Flow of Matter and Energy: Explain that the transfer and transformation of matter and energy links organisms to one another and to their physical setting.
3.E.1.e. Ask and seek answers to questions about the fact that transfer of matter between organisms continues indefinitely because organisms are decomposed after death to return food materials to the environment.
3.E.1.f. Provide evidence that supports the premise 'In the flow of matter system the total amount of matter remains constant even though its form and location change': Carbon cycle; Nitrogen (cycle); Food chains and food webs.

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