Question

peter burns a piece of crispbread to find out how much energy is stored in it. Energy from the burning crispbread raises the temperature of the water in the test-tube. Describe one way peter has arranged apparatus so that he is working safely

Answer 1

Peter burns a piece of crispbread to find out how much energy is stored in it. Energy from the burning crispbread raises the temperature of the water in the test-tube. Peter wants to find out if potato crisps contain as much energy as crispbread. He does the experiment again using a piece of potato crisp. Choose two things he must do to make the experiment a fair test

Answer 2

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The Question is Give below

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Accept ‘he used a pin’ or ‘he is not holding the crispbread’ or ‘the cork is on the stand’

• the test-tube is held in a clamp

• the test-tube is held in a clampaccept ‘he used a clamp’ or ‘the test-tube is held tightly’

• it is away from the edge of the bench

of the bench’ do not accept ‘the test-tube is at an angle’

he used a cork and a pin to hold the burning crispbread

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