Food Webs

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Across
  1. 4. the lakes, oceans, rivers, and ice on Earth
  2. 5. the "top of the food chain" in the woodlands ecosystem we studied in class (two words with no spaces)
  3. 7. a tiny plant-like structure in the ocean that uses Earth's sunlight to make food
  4. 11. this breaks down dead plants or animals to return their nutrients back into the ecosystem
  5. 12. this uses sunlight to create its own food
  6. 13. the arrows in a food web are to show the transfer of _________
Down
  1. 1. the air and gases that surround Earth
  2. 2. the rocks, soil, and landforms of Earth
  3. 3. a large aquatic algae that seems more plant-like
  4. 6. this eats plants and animals
  5. 8. all of the plants, animals, and organisms on Earth
  6. 9. the "top of the food chain" in the aquatic ecosystem we studied in class (two words with no spaces)
  7. 10. the bay in California that we studied