Materials and properties

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Across
  1. 3. Gloves are made of rubber because rubber is waterproof and f__________.
  2. 4. Fish tank is made of glass because glass is t___________ and waterproof.
Down
  1. 1. Table is made of wood because it is strong and r__________.
  2. 2. Water bottle is made of p___________ because it is waterproof, strong and light.