EVERYDAY SCIENCE - LIGHT
Question 1

Ace worked at his uncle’s wine company during the holidays. His uncle tasked him to find out which type of bottle is best for packaging wine. He had to choose between a transparent bottle and a tinted bottle. The tinted glass is slightly coloured and translucent.

Ace carried out an experiment by leaving both bottles of wine exposed to direct sunlight in an open field for 2 weeks. After 2 weeks, Ace tasted the wine from both bottles. The wine in the transparent bottle tasted worse than the wine in the tinted bottle. The sunlight had caused some chemical reactions to occur in the wine, making it taste bad.

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Answer 1

Fill in the blanks with the keywords provided below.
[gain] • [less] • [light] • [block] • [reflect] • [heat] • [translucent] • [absorb]

a) Ace decided to use the tinted bottles as packaging of the wine. Explain why he did so.

Answer:

The tinted bottles are which would some from passing through to the wine. Therefore, chemical reactions will occur. The wine can be kept in the bottle for a longer time without spoiling.


b) Heat will also cause wine to spoil. Given this fact, why will wine in a black-tinted bottle spoil faster than wine stored in a white-tinted bottle, if both bottles are exposed to sunlight?

Answer:

A black object will most light shining on it. The light energy that is absorbed will be converted into . A white object will most light shining on it.
Therefore, if exposed to sunlight, the temperature of the black bottle will increase faster than the white bottle. The wine in the black bottle will more heat and spoil faster.




DO YOU KNOW plain.png

“Most wine bottles are green or amber as they are best for blocking harmful UV rays! Find out here which colour of tinted glass is best for keeping wine.”