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17 Jamila lives near to the sea.

She collects some sea water and measures the volume of the sea water.

 Jamila pours the sea water into a dish.

 She leaves the dish in the Sun until the dish only contains a white solid.

 She measures the mass of the white solid.

 Jamila repeats the experiment using different volumes of sea water.

(a) Which piece of equipment does Jamila use to measure the mass of the white
solid?

[1]

(b) A white solid appears after leaving the dish of sea water in the Sun.

Explain why.

[2]

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