Infinitives of purpose

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Across
  1. 2. we use this material to make toys and water bottles
  2. 5. people live in this house to stay above the water.
  3. 7. we use this room to sleep.
  4. 10. people live in this house to travel on the river.
  5. 11. we use this room to make food to eat
Down
  1. 1. we use this material to make windows
  2. 3. we use this material to make robots.
  3. 4. we use this brown material to build houses out of trees
  4. 6. people live in this house to help the environment.
  5. 8. we use this room to bathe and to go to the toilet.
  6. 9. we use this red material to build houses out of clay