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Forces Work and Machines
Solids Liquids and Gases
Heat Temperature and Expansion
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acetate acid alcohol aluminium atmosphere atoms bacteria boiler boiling point called carbon dioxide cellulose central heating Chapter chemical colour compounds condensation contain converted cooker cooking cool copper cotton crease crimp crystals density detergent dissolved electricity electrons elements enzymes fabric fibres flow foam force fuel glass glucose hard water heat energy heater hot water hydrogen ions iron joules known latent heat light liquid machine magnetic material measured melting metal milk mixture molecules naphthalene nylon º º occurs oxygen particles plastics polyester polymer pressure produced properties protein quantity radiation refrigerator removed resistance salt silk ſº soap sodium sodium carbonate solid solution solvent specific heat capacity steam substances sugar supply surface surface tension switch synthetic temperature textiles thermometer thermoplastic thermostat tube unit usually vapour vitamin warm washing water molecules weave weight wire wool yarn