Using reversible changes to recycle

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Fill in the blanks to explain how reversible changes can be used to recycle.

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Compléter Using reversible changes to recycleVersion en ligne Fill in the blanks to explain how reversible changes can be used to recycle. par D 1 Glass is by colour and washed . It is then crushed into small , which are then with raw materials like and soda ash . It can then be into new shapes . Once , glass keeps its and strength so it can be used again . 2 Plastic is into different types . It is then or ground and washed . It is then heated and made into which are sold to companies who them and turn them into new . 3 Different types of metal are . The metal is then and made into big which are used to make new . 4 Materials like glass , and plastic are made of strongly bonded . At a certain heat causes these bonds to , turning the solid into liquid . When the heat is , the molecules form new bonds and the liquid again .