Test
Cycling of matter in ecosystems
This classroom material guides 7th-grade students through practicing key concepts of matter cycling in ecosystems, including the carbon and nitrogen cycles and the role of decomposers. Students respond to multiple-choice and sequencing questions, and fill-in-the-blank exercises to reinforce understanding of processes and terminology.
By Edform · Science · Grade 7 · Published Oct 15, 2026 · New
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Questions
- Which process adds carbon dioxide to the atmosphere during the carbon cycle?
- Which of the following are roles of decomposers in an ecosystem?
- Put these steps of the nitrogen cycle in the correct order, starting with nitrogen in the atmosphere.
- Fill in the blank with the correct word: Plants take in carbon dioxide from the atmosphere during ___.
- Sort each item as part of the carbon cycle or the nitrogen cycle.
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