Video Transcript
The following figure shows two
thermometers that measure different temperatures. What is the difference in the
readings on the thermometers? Is it (A) five degrees Celsius, (B)
two degrees Celsius, (C) six degrees Celsius, or (D) 20 degrees Celsius?
This question is asking us to read
the two temperatures marked on these two thermometers and calculate their difference
in temperature. Looking first at the scales of the
thermometers, we can see that they both measure in units of degrees Celsius and use
the same scale, which is marked every one degree C.
Let’s call the thermometer on the
left thermometer one and the one on the right thermometer two. Looking closely at thermometer one,
we can see that it indicates a temperature of 25 degrees Celsius, while thermometer
two indicates a temperature of 19 degrees Celsius.
To find the difference in
temperature, we just subtract the smaller value from the larger one, so in this case
19 degrees Celsius from 25 degrees Celsius. This gives us a temperature
difference of six degrees Celsius. So, the correct answer is option
(C), six degrees Celsius.
