Science Scavenger Hunt: Humans Change Ecosystems

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Across
  1. 2. structures built to control water flow that can flood ecosystems and prevent fish from reaching breeding sites
  2. 5. a community of living things and their nonliving environment interacting as a system
  3. 8. the variety of different species living in an ecosystem
  4. 9. something people add to air, water, or soil that harms living things
  5. 10. "An ______ species is a non-native organism that causes harm to the ecosystem."
  6. 15. at risk of disappearing from an area or becoming extinct
  7. 16. to catch animals for study or control; scientists may ______ and tag pythons to track them.
  8. 17. "When farmers clear plants on a prairie for crops, animals leave, ______ the ecosystem's food web."
  9. 18. a method of mining that uses huge machines to remove soil and rock to reach resources, disrupting ecosystems for a long time
  10. 19. anything people add to the environment that harms living things
Down
  1. 1. "Burmese ______ are an introduced species in the Everglades and can grow up to 6m long."
  2. 3. "These three organisms are all invasive ______ that have caused damage to ecosystems after they were introduced."
  3. 4. brought into a new area by people, either on purpose or by accident
  4. 6. to bring back to a former or healthy condition; to help recover an ecosystem
  5. 7. to plant or grow (as people plant trees or crops to change land use)
  6. 11. the natural home or place where an organism lives and gets food and shelter
  7. 12. many connected food chains showing how energy and matter flow among organisms create a food _____
  8. 13. (context clue) to bring back (used here as restore/recover) — create a clue asking students to find the word near coral reef restoration passages (note: look for restore/rekindle context)
  9. 14. natural materials (like trees, minerals, or water) used to make goods and provide energy
  10. 16. kept in human care or captivity