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Integers
Math
Middle School Math

 

Name _____________________________
Date ___________________
Integers
Complete.

1.   Certain mites in the arctic thrive at an average temperature of -51C. They also do well at temperatures of up to 27C. What is the temperature range acceptable to these arctic mites?

2.   The water potential in one plant cell was calculated to be -4 bar. The water potential in another cell was found to be -11 bar. What was the difference in water potentials? Note: the bar is a pressure unit equal to about 14.5 PSI.

3.   Mr. Bloop put a vial of protein powder in the -25C freezer. It was accidentally left out on the lab bench by one of his students. It had been there for most of the day, and the temperature in the lab was 19C. Once in the freezer, the temperature of the powder began to drop at a rate of 4C every 5 minutes. Assuming the temperature change rate was constant (which it really isn't, but we'll pretend), how long would it take to get to the temperature of the freezer?

4.   * This is a pre-made sheet.
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5.   Acetylene is a flammable gas used in welding. The boiling point of acetylene is -84C. If a sample of acetylene was cooled to 60C below its boiling point (where it would become a solid), what would its temperature be?

6.   Chemical Q is unstable at room temperature, so it is kept in a refrigerator at -37C. Once removed from the fridge, its temperature rises at a rate of 4C per minute. Assuming a bottle of chemical Q was exactly -37C when removed from the fridge, what will its temperature be six minutes after removal from the fridge?


 


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Integers
Math
Middle School Math