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Metals vs. Plastics: A Comparative Study by Chemistry Project

Explore the properties and uses of metals like Aluminium and plastics like Polystyrene with a comparison to understand their uniqueness and applications. Written by Ho Ka Ki, Lee Ka Wing, Lo Mung Ping, Ngan Wan Ting, Yeung Po Yee.

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Metals vs. Plastics: A Comparative Study by Chemistry Project

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  1. Chemistry Project Compare Metals and Plastics

  2. Member lists • Ho Ka Ki (25) • Lee Ka Wing (28) • Lo Mung Ping (31) • Ngan Wan Ting (35) • Yeung Po Yee (40)

  3. Contents • Introduction—Metals —Plastics • Metals : Aluminium • Plastics : Polystyrene • Comparison—Properties —Uses

  4. Metals • From metal ores by chemical or electrolytic reduction • Are lustrous, ductile, malleable, and good conductors of heat and electricity. • Can be processed into alloys. • widely used in past & modern • world.

  5. Plastics Made by raw materials from crude oil Major elements carbon & hydrogen Widely used in recent decades unique properties When being disposed of improperly environmental problems polyethene polystyrene

  6. Aluminiums • Symbol: Al • Silvery ,ductile,lightweight metals. • Found primarily in bauxite ore • The most abundant metal in earth crust • Used to manufacture a large variety of products • Very important to world economy

  7. Polystyrene It is colorless, hard with limited flexibility and a polymer made from styrene. Production Heat the mixture of styrene and kerosene pour it into methanol after cooling waxy, solid of polystyrene formed Danger Benzene, a material used to produce polystyrene,is human carcinogens.

  8. Comparison of Properties Possible Transparent ___:Differences ___:Similarities

  9. Comparison of Uses

  10. *The End*

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