This task is about designing and carrying out a fair test.
Which cup kept the water hot? With the materials you are given, design a investigation to find out which cup will keep water the hottest over 10 minutes, and how the water temperature changes over 10 minutes.
| a) | i) |
Write a plan for your investigation here. When you have written your plan, give it to your teacher to check.
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| ii) |
How often will you measure the water temperature? _______________
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| iii) |
Which cup do you think will keep the water the hottest? _______________
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Plan checked by teacher? 
| b) | Carry out your investigation. Record your results in this table. You will need to measure the water temperature before you start. This will be 0 minutes for your data and on your graph. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| c) |
On this grid draw a line graph to show your results for all 4 cups. You will need to complete the key and the axes.
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Temperature (oC)
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The Temperature Change of Water in 4 Different Cups
Time (minutes)
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| d) |
Write a conclusion for your investigation.
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