C2 SCIENCE REVISION

* materials                                                                                                                     * chemicals

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C2

A Material- any substance that is made of matter e.g. testube- glass, water- chemical, table- wooden                                                                                         synthetic- a non natural material e.g. nylon- trainers, polythene- bag

monomers- single, individual atoms

polymer- a long chain of monomers (atoms)

polymerisation- monomers are chemically converted to polymers

plasticizers- makes things more flexible

sulfur- makes cross links- cross links is what makes rubber hard

HDPE- high, density, poly, ethane

LDPE- low, density, poly, ethane

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