200 mL of water at 18°C was put into each of four containers. The containers were placed side by side in the sunlight for 10 minutes. The temperature of the water in each container was then recorded.
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Thermometer 
200 mL water at 18° C
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Temperature after 10 min
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Shiny container
20°C
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Dull container
23°C
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Black container
24°C
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White container
21°C
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Use the information from the experiment above to answer the questions.
a) Whare is going camping. He wants to paint his water container so that the water inside will stay as cool as possible.
i) Should he use black or white paint? blackwhite
ii) Should he use a gloss (shiny) or a matt (dull) paint? gloss/shinymatt/dull