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

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

   Because of its extremely low temperatureSorry, not correct. Try another button. Because it looks like ice but does not turn into a liquid when it meltsThat is correct. You understand about dry ice. To avoid confusion with "wet ice"Good try, but not right. Select another answer.

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

   You can't, because it is drySorry, not correct. Try another button. By putting it under high pressureCorrect. You are doing great. By dropping it in a bucket of waterOops! Wrong answer. Re-read the question and try again.

3. What is a novelty use for dry ice?

   It is used as a PopsicleOops! Wrong answer. Re-read the question and try again. It is used for ice-skating on a warm dayGood try, but not right. Select another answer. It is put in water to make it seem to boil and smokeThat is correct. You understand about dry ice.

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