# Conservation of Mass

## 16 questions

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• 1. Multiple Choice
30 seconds
1 pt
A 500-gram block of solid cheese is melted in a pot. Which is most likely the mass of the cheese after it is melted?
500 grams, because the cheese does not gain or lose mass just because it was melted
499 grams, because some of the cheese evaporates as it melts
502 grams, because the cheese absorbs heat as it melts
• 2. Multiple Choice
30 seconds
1 pt
A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon as a result of this change?
The mass of the balloon increases because the size of the balloon has increased.
The mass of the balloon increases because the temperature of the balloon has increased.
The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up.
• 3. Multiple Choice
30 seconds
1 pt
Jamie weighs a glass of water and observes its weight to be 12 ounces. Jamie then adds 6 ice cubes to the glass of water. Each ice cube weighs one ounce. After all of the ice cubes have melted, what will be theapproximate weight of the glass of water?
12
18 ounces