1. The Three Temperature Scales
Anders Celsius
Lord Kelvin
Daniel Gabriel Fahrenheit

2. Early Thermometers The first thermometers were called thermoscopes
Galileo Galilei, 1593, early water thermometer
Italian inventor Santorio Santorio was the first inventor to put numbers on thermometers
1714, Gabriel Fahrenheit: first mercury thermometer- what we still use!

3. Daniel Gabriel Fahrenheit
German Physicist
1709- invented alcohol thermometer
1724, introduced the Fahrenheit temperature scale

4. Anders Celsius Celsius temperature scale aka: "centigrade" scale.
Centigrade means divided into 100
This scale has 100 degrees between freezing point of water and boiling point of water

5. Lord William Thomson Kelvin
Invented Kelvin Scale- 1848
Measures extremes of hot and cold
0 degrees Kelvin= absolute zero

6. what do you already know on the next diagram?
See how many we can guess, and then try some conversions!

8. spare graphic for later, for now this is a duplicate graphic already used in brendans smart notebook file for this lesson