Celsius/Fahrenheit Temperatures Project*



Temperature Conversion Activity

The Fahrenheit temperature, “F,” and the Celsius temperature “C,” of an object are related

by a linear function. Water boils at 100°C, or 212°F, and water freezes at 0°C, or 32°F.

Show your reasoning/process as you work each problem.

1. Think of the above facts as ordered pairs in the form (°C, °F). Write the two

ordered pairs suggested above.

2. Plot the 2 points on the graph below, plus the one mentioned in the text box below. Then draw a line, ray, or line segment (you decide what is appropriate for this situation) containing the 3 points. Clearly label the axes, and use an appropriate scale on each axis.

3. If problem #2 is correct, you just graphed part of the linear function F = 1.8C + 32. Find each of the following.

(a) Complete the table below using the formula. Show work with the formula on one problem below.

|˚C |˚F |

|0 |32 |

|5 | |

|10 | |

|15 | |

|20 | |

|100 |212 |

| |437 |

(b) Find the slope of the line in fraction form. _____

If the temperature changes 5 degrees on the Celsius scale, the temperature changes _____ °F.

(c) Find the x-intercept _____ Give the related temperature fact: _____ °C = _____ °F

(Round to the nearest integer.)

Show work to support this answer using the formula.

(d) the y-intercept _____ Give the related temperature fact: _____ °C = _____ °F

4. Starting with F = 1.8C + 32 or [pic], show the step-by-step process for solving for C.

5. Copper melts at a temperature of 1980°F. What is this temperature in degrees Celsius? Round to the nearest degree. Show work with one of the formulas.

6. If you had a fever thermometer calibrated in Celsius degrees, what would “normal” human body temperature (98.6°F) be on it? Show work with one of the formulas.

7. Fill in the blank: -40°F = _____ °C Show work with one of the formulas.

8. If the weather forecaster says it will be 32°C today, is this hot, cold, or medium? __________ Explain.

9. Use one of the temperature conversion formulas to show that -273°C = -459°F.

10. The weather forecaster calls for an overnight low temperature of 10°C. What should you plan to do? Write Yes or No in each blank.

_____ (a) In your home, turn your heater on.

_____ (b) In your home, turn your air conditioner on.

_____ (c) In your yard, protect your plants from frost.

_____ (d) On a camping trip, sleep with an extra blanket.

Show the conversion to degrees Fahrenheit for this scenario.

Do your best! Rise to the challenge! Live and learn!

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FYI: There is a coldest possible temperature —

-273°C or -459°F

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J a c k ¬ Ú ì

56FG”•—˜™›œžŸ¢íÝíÏ֎Ã?·?Ñ÷‘·Ã‘Ã{ÃeOÃeÃeÃ+jhTI9B*[pic]OJQJU[pic]mHnHphu[pic]+jhÕLÆB*[pic]OJQJU[pic]mHnHphu[pic]+jhä=ØB*[pic]OJQJU[pic]mHnHphu[pic]h7#™B*[pic]OJQJphhTI9B*[pic]OJQJphh”S

6?B*[pic]OJQJphhwhuB*[pic]OJQJphh”S

B*[pic]OJQJph(both equivalent to O K). There doesn’t seem to be a highest possible temperature.

Show this fact in your graph.

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