Educational worksheet on ecosystem cycles focusing on the water cycle and nutrient cycles.

A worksheet titled "Ecosystem Cycles" with questions about the water cycle and other ecological processes, including multiple-choice and fill-in-the-blank sections.

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1. C
2. E
3. D
4. F
5. A
6. B
7. Nitrogen
8. oxygen
9. plants
10. Decomposers, carbon
11. add, to
12. cools
13. soil
14. evaporation
15. recycled
16. Decomposers break down dead organisms and waste, releasing carbon and nitrogen back into the soil and atmosphere as simpler compounds. This makes these essential elements available again for producers to use, ensuring the continuous flow of matter through the ecosystem.
17. They are called cycles because matter is not lost or used up; instead, it is continuously reused and recycled through different parts of the ecosystem—moving between living organisms and the non-living environment in a repeating loop.

Parent Tip: Review the logic above to help your child master the concept of cycles of matter worksheets.

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