Materials and shapes vocabulary

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Across
  1. 4. Part of a container made to pour a liquid without overflowing
  2. 6. Prevent any liquid to go through
  3. 7. Several layers of circles attached
  4. 8. V-shaped object used to corner a door
Down
  1. 1. Easily breakable
  2. 2. Very flexible and smooth material
  3. 3. Moon's shape some times in a month
  4. 5. Synonym for large and wide
  5. 8. What a candle is made of