Unit 4: Our Planet

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Across
  1. 1. Most of our old clothes will end up in ______.
  2. 5. Lions, tigers, and elephants are examples of ______.
  3. 6. Do you know how many ___________ there are in our galaxy?
  4. 8. How about bringing our own bags when shopping to protect the ____________?
Down
  1. 2. A strong storm can _________ buildings and roads.
  2. 3. Smoke from factories can cause air ______.
  3. 4. Students take turns to ________ ___ the classroom after class.
  4. 7. Passengers should not leave their ______ on the bus.