Grade 7 · Math

7th grade Change between Celsius and Fahrenheit worksheet

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Change between Celsius and Fahrenheit

Grade 7 Math Worksheet - Challenge Me

NameDate

Circle the best answer, or write your answer on the line.

Bo's soup cools by 15 °C while Bo sets the table. By how many °F did the temperature change?
2.
Jun's room is 20 °C and warms by 18 °F. What is the new Celsius reading?
- 30 °C
- 38 °C
- −7.8 °C
3.
Kira's town is 35 °C and a friend's is 86 °F. How many °F warmer is Kira's town?
- 5 °F
- 9 °F
- 51 °F
4.
Luz compares the freezing-to-boiling gap on each scale. What are the gaps?
- 100 °C and 212 °F
- 100 °C and 100 °F
- 100 °C and 180 °F
5.
Milo says 20 °C is twice as warm as 10 °C in Fahrenheit, too. Agree or disagree?
- Agree: double °C is double °F
- Disagree: 50 °F and 68 °F
- Agree: 20 is twice 10
6.
Noah says doubling a Celsius reading doubles the Fahrenheit reading. Agree or disagree?
- Agree: 9/5 doubles too
- Agree: the scales grow together
- Disagree: the + 32 gets in the way
7.
Pia says 'double and add 30' gives a rough °F from °C. Agree or disagree?
- Agree: it's close, not exact
- Disagree: the rule is exact
- Disagree: it's far off
8.
At what temperature do the Celsius and Fahrenheit readings match, Ren wonders?
- −40°
- 0°
- 32°
9.
For a warm 25 °C day, which number is bigger, Tala: the Celsius or the Fahrenheit reading?
- They are equal
- Fahrenheit, 77
- Celsius, 25
10.
Which is the bigger step on Zee's thermometer: 1 °C or 1 °F?
- 1 °C
- 1 °F
- They are equal

Change between Celsius and Fahrenheit. Every version has 10 questions, and the answer key prints on the second page.

I can use F = 9/5 × C + 32 and C = 5/9 × (F − 32), including below freezing.
I can solve the formula for the other scale by undoing its steps.
I can use reference points: 0 °C = 32 °F, 100 °C = 212 °F and about 37 °C = 98.6 °F.
I can convert a change in temperature (no + 32) and find where the scales meet (−40°).

Standard: IXL parity (Nov 11)

Celsius: The scale where water freezes at 0° and boils at 100°

Fahrenheit: The scale where water freezes at 32° and boils at 212°

formula: A rule written with letters, like F = 9/5 × C + 32

reference point: A known temperature used to check

change in temperature: How much it rises or falls

Your child multiplied by 9/5 but didn't add 32. Fahrenheit starts at 32 where Celsius starts at 0, so add 32.

Your child multiplied first and subtracted 32 last. Take 32 away from the Fahrenheit reading first, then multiply by 5/9.

Your child added 32 to a change in temperature. A change has no starting point, so only multiply by 9/5.

What is the most common mistake with change between celsius and fahrenheit?

Your child multiplied by 9/5 but didn't add 32. Fahrenheit starts at 32 where Celsius starts at 0, so add 32.

Are these 7th grade math worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

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