Measures and time · Ages 8–9

Temperature worksheet

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Measures and time · Ages 8–9

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Write each answer in the space. For word problems, show your working and write a sentence answer.

1.What temperature does the thermometer show, in °C?
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2.The temperature is 20 °C in the morning and rises to 32 °C by noon. By how many degrees did it rise?
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3.What temperature does the thermometer show, in °C?
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4.The temperature is 12 °C in the morning and rises to 21 °C by noon. By how many degrees did it rise?
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5.It was 12 °C in the morning; the picture shows the afternoon temperature. By how many degrees did it rise?
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6.It was 30 °C in the morning; the picture shows the afternoon temperature. By how many degrees did it rise?
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13.On the same day, Hong Kong is 26 °C and Harbin is 11 degrees colder. What is the temperature in Harbin?
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14.The Observatory says it was 26 °C this morning, and by noon the temperature had risen 6 degrees. What was the temperature at noon?
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15.A kettle of water is 100 °C when it boils. Ka-yan leaves it to cool, and it drops 20 degrees every 10 minutes. What is the water's temperature after 30 minutes?
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16.This week's highest temperature was 27 °C and the lowest 22 °C. How many degrees apart are they?
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17.A kettle of water is 100 °C when it boils. Ka-lok leaves it to cool, and it drops 17 degrees every 10 minutes. What is the water's temperature after 30 minutes?
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18.The Observatory says it was 15 °C this morning, and by noon the temperature had risen 7 degrees. What was the temperature at noon?
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Show the answers and working

Temperature worksheet: Answers and working

1. 12°C
See how many degrees one small mark is, then count up from the nearest number below the top of the liquid.
Each small mark is 1 degree: count up from the nearest number below the top of the liquid, 12 °C.
2. 12 degrees
It went from 20 °C up to 32 °C: take the lower temperature from the higher one.
Higher minus lower: 32 − 20 = 12 degrees.
3. 8°C
How many marks lie between two numbers? Work out one mark first, then count up from the number below.
Numbers 10 degrees apart have 5 marks between them, so each is 2 degrees: count up in twos from the number below, 8 °C.
4. 9 degrees
It went from 12 °C up to 21 °C: take the lower temperature from the higher one.
Higher minus lower: 21 − 12 = 9 degrees.
5. 9 degrees
Read the afternoon temperature off the thermometer first, then compare it with the morning's 12 °C.
Read the thermometer first: 21 °C in the afternoon; then subtract: 21 − 12 = 9 degrees.
6. 5 degrees
Read the afternoon temperature off the thermometer first, then compare it with the morning's 30 °C.
Read the thermometer first: 35 °C in the afternoon; then subtract: 35 − 30 = 5 degrees.

7. False
The smaller the number, the colder. Compare 26 with 6.
The smaller the number, the colder: compare 26 and 6.
8. B. 35 °C
The bigger the number, the hotter. Compare the four numbers.
The bigger the number, the hotter: the biggest is 35 °C.
9. False
The smaller the number, the colder. Compare 36 with 24.
The smaller the number, the colder: compare 36 and 24.
10. D
See how many degrees one mark is, then for each thermometer count up from the number below the liquid.
Each mark is 1 degree: for each, count up from the number below the liquid; the one at exactly 17 °C is right.
11. A. 31 °C
A Hong Kong summer afternoon is hot, but nowhere near boiling. Which temperature is sensible?
A Hong Kong summer afternoon is about 30 °C: 31 °C fits best.
12. D
See how many degrees one mark is, then for each thermometer count up from the number below the liquid.
Each mark is 1 degree: for each, count up from the number below the liquid; the one at exactly 14 °C is right.

Marking: 2 for the working, 1 for the answer, 1 for the sentence.

13. 15°C
11 degrees colder than Hong Kong means less than 26 °C. Add or subtract?
11 degrees colder means subtracting: 26 − 11 = 15 °C.
14. 32°C
Rising means 6 degrees more than 26 °C. Add or subtract?
Rising means adding: 26 + 6 = 32 °C.
15. 40°C
How many lots of 10 minutes are in 30 minutes? Work out how far it drops in all first.
30 minutes is 3 lots of 10, so it drops 3 × 20 = 60 degrees: 100 − 60 = 40 °C.
16. 5 degrees
The difference is the higher temperature minus the lower: 27 °C and 22 °C.
The difference is higher minus lower: 27 − 22 = 5 degrees.
17. 49°C
How many lots of 10 minutes are in 30 minutes? Work out how far it drops in all first.
30 minutes is 3 lots of 10, so it drops 3 × 17 = 51 degrees: 100 − 51 = 49 °C.
18. 22°C
Rising means 7 degrees more than 15 °C. Add or subtract?
Rising means adding: 15 + 7 = 22 °C.