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Safety Book 2, isotropic vz anisotropic, :check: - Coggle Diagram

- - - - Q. What happens when you mix salt in water?
      - A. The salt dissolves in the water.
      - Q. Why has this apple turned brown?
      - A. It has turned brown because it has oxidised.
      - Q. What is being passed through the water?
      - A. An electrical current is being passed through the water in a process called electrolysis.
  - - - Thermoplastic is a material, usually a plastic polymer, which becomes more soft when heated and hard when cooled.
      - Thermoplastics can be cooled and heated several times without any change in their chemistry or mechanical properties.
      - When thermoplastics are heated to their melting point, they melt to a liquid.
      - They can then be injected into specially shaped moulds to create a component that is exactly the right shape for the desired purpose, such as containers and pipes.