Converting Celsius to Fahrenheit

Show your work for each problem.

1.
At what temperature does water freeze in Fahrenheit?
1. a)
2. b)
3. c)
4. d)
Answer:
Water freezes at (which equals ). This is a key reference point for temperature conversion.
2.
Convert to Fahrenheit.
Answer: 32
. This is the freezing point of water.
3.
Which formula converts Celsius to Fahrenheit?
1. a)
2. b)
3. c)
4. d)
Answer:
The correct formula is . You multiply Celsius by 9/5 first, then add 32.
4.
Convert to Fahrenheit.
Answer: 212
. This is the boiling point of water.
5.
Convert to Fahrenheit.
Answer: 68
1. What is ? 36
2. Now add 32 to your result. What is ? 68
6.
Convert to Celsius.
Answer: 20
. This is typical room temperature.
7.
Normal body temperature is . What is this in Fahrenheit?
1. a)
2. b)
3. c)
4. d)
Answer:
. This is the standard body temperature reference.
8.
Convert to Celsius.
Answer: 30
1. What is ? 54
2. Now multiply by 5/9. What is ? 30
9.
Convert to Fahrenheit.
Answer: 14
. Cold but still above zero in Fahrenheit!
10.
Convert to Celsius.
Answer: 10
1. What is ? 18
2. Now multiply by 5/9. What is ? 10
11.
At what temperature are Celsius and Fahrenheit equal?
Answer: -40
At , both scales read the same: . Verify: .
12.
A recipe calls for an oven temperature of . What is this in Celsius (round to the nearest whole number)?
Answer: 204
1. What is ? 368
2. What is ? 1840
3. What is (rounded)? 204
13.
If the temperature rises from to , how many degrees Fahrenheit is this increase?
1. a)
2. b)
3. c)
4. d)
Answer:
The change is . Since 1°C = 1.8°F, the Fahrenheit change is .
14.
Convert to Celsius.
Answer: -30
1. What is ? -54
2. What is ? -30
15.
Using the quick estimation method, what is approximately in Fahrenheit? (Use: double and add 30)
Answer: 80
Quick estimate: . The exact answer is , so the estimate is close!
16.
What is the boiling point of water in Fahrenheit?
1. a)
2. b)
3. c)
4. d)
Answer:
Water boils at (which equals ). This is a key reference point for temperature conversion.