Ecosystems

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Across
  1. 3. the natural home where a plant or animal lives. A small part of an ecosystem.
  2. 6. a living thing (a plant) that makes its own food using sunlight.
  3. 8. an animal that eats other animals.
  4. 10. a substance that can harm or kill living things.
  5. 11. a living thing that breaks down dead plants and animals and releases the nutrients into the soil.
  6. 12. a chemical used to kill pests (like insects or weeds).
  7. 14. a very small living thing that can only be seen with a microscope.
  8. 16. an animal that is hunted and eaten by another animal.
  9. 17. an animal that eats only plants.
  10. 19. everything around a living thing, including living and non-living things.
  11. 20. a species that spreads into a new area and harms local living things.
  12. 21. a living thing that gets energy by eating other living things.
Down
  1. 1. the build-up of harmful substances in a living thing over time.
  2. 2. a simple line that shows what eats what in an ecosystem.
  3. 4. the living things and the non-living things in one certain, distinct place.
  4. 5. a group of connected food chains in an ecosystem.
  5. 7. when a species has no living members left.
  6. 9. an animal that hunts and eats other animals.
  7. 13. the variety of different living things in an area.
  8. 15. a step or level in a food chain or food web.
  9. 18. an animal that eats both plants and animals.