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Mini-Quiz: Dry Ice is the Solid State of Carbon Dioxide

By Ron Kurtus (revised 1 December 2005)

Take this Mini-Quiz to check your understanding of the lesson material.



1. Why is frozen carbon dioxide called "dry ice"?

Because of its extremely low temperature

Because it looks like ice but does not turn into a liquid when it melts

To avoid confusion with "wet ice"

2. How could you turn dry ice into a liquid?

You can't, because it is dry

By putting it under high pressure

By dropping it in a bucket of water

3. What is a novelty use for dry ice?

It is used as a Popsicle

It is used for ice-skating on a warm day

It is put in water to make it seem to boil and smoke

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.


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