Plastics

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Across
  1. 1. Abreviation for material gutters are made from
  2. 3. What does poly mean
  3. 5. What property may be used to describe acrylic,h why we don't dot punch
  4. 7. What type of plastic is polyethylene?
Down
  1. 1. a plastic used to protect delicate goods
  2. 2. What type of plastic cannot be melted and reshaped?
  3. 4. The plastic used to make base plate of 2023 JC project
  4. 6. The real name for plastics