2. Objectives
The Student will investigate scientific
temperature scales
Compare and Contrast, Fahrenheit,
Celsius and Kelvin scales
Describe the theoretical meaning of
“Absolute Zero”
4. Fahrenheit Scale
A temperature scale used
almost exclusively in the United
States based on what the
human body’s temperature was
thought to be ~ 100o
(98.7o
F)
Water freezes at 32o
F
Water boils at 212o
F
5. Celsius Scale
A scientific scale for recording
temperature that focuses on the
freezing point of water (0o
) and
the boiling point of water (100o
)
at sea level
Called Centigrade for its 100
graduations
6. Kelvin Scale
A scientific scale for recording
temperature based on the point
where there is no molecular
movement.
It starts from absolute zero or -273 o
C
it increases by the same size degree
increments as the Celsius scale.
7. Absolute Zero
The Kelvin temperature (-273o
C) when all molecular motion
stops.
8. Conversions:
To convert from Celsius to Kelvin add
273 degrees to the Celsius
temperature
0o
C + 273 = 273 K
To convert Kelvin to Celsius, subtract
273 from the Kelvin temperature.
373K - 273= 100 o
C
9. It’s Just a Phase:It’s Just a Phase:
Temperature ScalesTemperature Scales
10. Lab Time!
You now have ~60 minutes to
collect data , fill in graphs and
complete the lab up to and
including page 53.
Remember to READ
and answer all the
questions!
