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

The resources above correspond to the standards listed below:

New Hampshire Standards

NH.CC.RST.6-8. Reading Standards for Literacy in Science and Technical Subjects
Craft and Structure
RST.6-8.4. Determine the meaning of symbols, key terms, and other domain-specific words and phrases as they are used in a specific scientific or technical context relevant to grades 6-8 texts and topics.
NH.LS2. Life Science: Energy flows and matter recycles through an ecosystem.
S:LS2:8:2.2. Flow of Energy: Given a scenario, students will trace the flow of energy through an ecosystem, beginning with the sun, through organisms in the food web, and into the environment (includes photosynthesis and respiration).
S:LS2:8:3.3. Recycling of Materials: Students will know that all organisms, including humans, are part of, and depend on, two main interconnected global food webs: one which includes microscopic ocean plants, and the other which includes land plants.
S:LS2:8:3.4. Recycling of Materials: Students will describe how matter is recycled within ecosystems and explain that the total amount of matter remains the same, though its form and location change.
S:LS2:8:3.6. Recycling of Materials: Given an ecosystem, students will trace how matter cycles among and between organisms and the physical environment (includes water, oxygen, food web, decomposition and recycling, but not carbon cycle nor nitrogen cycle).
NH.SPS2. Science Process Skills: Unifying Concepts of Science
S:SPS2:8:4.5. Patterns of Change: Students will apply skills from previous grades and realize that cycles, such as the seasons or body temperature, can be described by their cycle length or frequency, what their highest and lowest values are, and when those values occur; different cycles range from many thousand years down to less than a billionth of a second.

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