Copper sulphate 0 Overview Using this Resource Connecting to the Curriculum Marking Student Responses Further Resources This task is about acids and bases. A B C D Question Change answer a) The steps for making copper sulphate crystals are shown above. Put them into the correct order. a) The steps for making copper sulphate crystals are shown above. Put them into the correct order. Question b) What is the name given to the type of reaction in B, where an acid and a base react together? Evaporation Condensation Neutralisation Combustion Task administration: This task can be completed with pencil and paper or online with auto-marking. Level: 5 Curriculum info: Science, Knowledge, Material World Keywords: changes, neutralisation, copper sulphate, sequencing Description of task: Students place in order, four diagrams showing the steps for making copper sulphate crystals. Answers/responses: Y10 (05/1999) a) B D A C difficult b) C - Neutralisation easy Baking soda and lemon juice Heating meths Dissolving sugar and salt Burning candles Alcohols Carbonate reactions Freezing and melting points Dissolving sugar II Heating octane Temporary or permanent? Melting or dissolving? Humidity Dissolving salt faster Poaching eggs The liquid range for common substances What does the candle weigh? Melting and boiling points Copper sulphate solutions The party Mixing it up Fresh water from sea water A winters day Cooking changes things Paint Keeping food cold Acid rain Which will melt first? Runny honey Which type of sugar dissolves best? Wagon wheels Food colouring in water Cooking Watching ice melt Effect of surface area on evaporation rate Keeping sandwiches fresh Amazing water Is it evaporation or condensation? Popped popcorn Metal corrosion Nail investigation Cooking potatoes What is happening? Dissolving milo Sugar and water Rates of dissolving Changes to our piece of pumpkin Keeping bread fresh Recording results of a pH test Rusting nails Disappearing water Where did the water go? II Dissolving sugar The disappearing puddle Food in the sun Burning candle diagram A home-made smell remover Evaporating water Freezing water Boiling water The science of burning Where did it come from? Sugary drinks Water everywhere! Removing rust
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