Materials!

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Across
  1. 1. I can build a house with it.
  2. 5. It is manmade and should be recycled.
  3. 6. A natural material used to make hats and roofs.
  4. 7. Cups, pots and even floors are made of this.
  5. 8. Keeps us and sheep warm.
  6. 9. Mr Ferdi's shoes are made from it.
  7. 12. We all have it in our bodies.
  8. 13. It's perfect to wear during a cold winter.
Down
  1. 2. It is everywhere in the city.
  2. 3. We need trees to make it.
  3. 4. It helps us see and drink.
  4. 6. A metal that's very expensive.
  5. 10. It comes from trees and helps us to walk better.
  6. 11. Silver and iron is an example of it.