Temperature Intro 2

Poll

This is Dry Ice in water. Dry ice is Frozen Solid CO₂. When it is put in water It Drastically heats up and causes the Liquid CO₂ to sublimate into Gaseous CO₂. What do you think would happen if you put a block of Dry ice into a sealed bottle of water?

• It would freeze the water inside of the sealed bottle

• The Dry Ice will stay solid because the gas has nowhere to go

• The bottle will explode

Multiple Choice

You have supervision and can see molecules. You are looking at molecules that are 200 °F. What do the molecules look like?

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​Temperature Scales

​There are 3 Temperature Scales, Today we will focus on two.

Celsius & Fahrenheit

​Temperature Scales

​Celsius

​The Celsius is used in most parts of the world (Besides the US).

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It is the easiest to work with because of the way it was designed.

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0°​ is the Freezing Point

While 100°​ is the Boiling Point

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​Temperature Scales

​Fahrenheit

​The Fahrenheit scale is used mainly just in the US.

​

Daniel Gabriel Fahrenheit came up with it in the 1700's​

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He choose 0°​ because it was the temperature on the coldest day of the year

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While 100°​ was supposed to be the temperature of a human body

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​This means the Freezing Point of Water = 32° F

And the Boiling point of water is 212°​ F

Multiple Choice

Let's See if you remember... What is the freezing point of water in Celsius

• 273° C

• 32° C

• 0° C

Multiple Choice

Let's See if you remember... What is the boiling point of water in Fahrenheit?

• 212° C

• 32° F

• 0° F

• 100° F

Multiple Choice

Which thermometer is used more often in the US?

• Celsius

• Fahrenheit

Fahrenheit to Celsius decimal formula

• (degrees Fahrenheit - 32) divided by  1.8 = degrees C

• Example: 101 degrees Fahrenheit

• (101 - 32) divided by 1.8 = degrees Celsius

• 69 divided by 1.98 = 38.3 degrees Celsius

Multiple Choice

Let's Practice... 133℉ is what in Celsius?

• 57℃

• 113℃

• 45℃

• 0℃

Multiple Choice

212℉ is what in Celsius?

• 100℃

• 212℃

• 0℃

• 120℃

Multiple Choice

110℉ is what in Celsius?

• 110℉

• 43.33℃

• 43.33℉

• 55.5℃

Celsius to Fahrenheit - Decimal Formula

• Celsius to Fahrenheit

• (degrees C X 1.8) + 32 = degrees Fahrenheit

• Example: 37 degrees Celsius

• (37 X 1.8) + 32 = degrees Fahrenheit

• 66.6 + 32 = 98.6 degrees Fahrenheit

Multiple Choice

Let's Practice... 482.22℃ is what in Fahrenheit?

• 900℉

• 266℉

• 320℉

• 1866℉

Multiple Choice

0℃ is What in Fahrenheit?

• 32℉

• 32℃

• 57℉

• 0℉