Page 2 - THE CIRCULATORY SYSTEM
P. 2

2    a  At which temperature did the sugar dissolve fastest?


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                    b  How long did it take the sugar to dissolve at 30 °C?

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                    c  Predict how long it would take the sugar to dissolve at 20 °C.


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                    d  At which temperature did the sugar dissolve slowest?


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               3    In order to make the investigation a fair test, name:
                    a  the control variables that Class 6 kept the same


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                    b  the dependent variable that they measured


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                    c  the independent variable that they changed.


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               4    Write a conclusion for the investigation.


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