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How to Read a Thermometer
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How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

Dec 17, 2015

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Dylan Atkinson
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Page 1: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

How to Read a Thermometer

Page 2: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

A thermometer is an instrument that is used to

measure temperature.

Page 3: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

The temperature of something tells us how hot

or cold something is.

Page 4: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

Temperature is measured in

degrees.

Page 5: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

is the symbol for degrees.

100 “100 Degrees”

Page 6: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

Temperature is measured on two scales: Celsius and Fahrenheit.

98.637 C F

Page 7: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

“C” is the symbol for the Celsius scale.

C

Page 8: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

The Fahrenheit scale is the most popular in the United States.

Its symbol is “F.”

F

Page 9: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

Let’s count by 2’s…

2, 4, 6, 8, 10, 12…

Page 10: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

The lines on most

thermometers count by two’s. 90

92949698

100102

F

Page 11: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

8890929496

100

FWhat is the temperature

on this thermometer?

98 F

“98 degrees Fahrenheit”

Page 12: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

7678808284

88

F90

Try this one.

86 F

“86 degrees Fahrenheit”

Page 13: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

Normal body temperature is 98.6 F.

This means it is between 98 and 99 degrees.

Page 14: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

98.6 F

This is a decimal point.

Page 15: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

97 98 99

.2 .4 .6

98.6 F

The temperature is “98 point 6” degrees Fahrenheit.

96

Page 16: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

98 99 100

.2 .4 .6 .8

99.8 F

The temperature is “99 point 8” degrees Fahrenheit.

97

Page 17: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

100 101 102

What is the temperature?

101.2 F

99

Page 18: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

Try this one.

102.8 F

101 102 103100

Page 19: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

Negative Numbers

The temperaturescale is often seen

vertically.

As the temperature goes below freezing

we use negative numbers.

0

1

2

3

4

5

6

- 1

- 2

- 3

- 4

- 5

- 6

Water freezing

Getting warmer

Getting colder

Page 20: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.
Page 21: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.
Page 22: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.
Page 23: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.
Page 24: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

SCALES

In U.S the Fahrenehit scale is used. The Celsius scale is used in almost all other

countries and by scientists.

Page 25: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

Fahrenheit (1686-1736) established three fixed points on his thermometer.

0 degrees: temperature of an ice, water, and salt mixture.

32 degrees: water-ice combination stabilized at "the thirty-second degree."

98 degrees: “when the thermometer is held in the mouth or under the armpit of a living man in good health."

Celsius (1701-1744) established two fixed points on his thermometer.

0°C: representing the freezing point of water.

100°C: the boiling point of water.

Page 26: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

PROBLEM

Riki measured the outside temperature at noon and then again at 8 p.m. The temperature at noon was 6°C. The temperature at 8 p.m. was – 2°C. What was the change in temperature?

1.You can use the thermometer like a number line.

There was a _____change in temperature.

Page 27: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

PROBLEM SOLVING

One day the lowest temperature recorded in Maine was -12°F. The highest temperature in Maine that day was 25°F. What was the change in temperature?

Page 28: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

Fórmula

°C  x  9/5 + 32 = °F

1)  Convert 37°C to Fahrenheit.37°C x  9/5 + 32 = 98.6°F

(°F  -  32)  x  5/9 = °C

2)  Convert 98.6°F to Celsius.(98.6°F  -  32)  x  5/9 = 37°C

Page 29: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.
Page 30: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.
Page 31: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.

•Use the formula to change each temperature to degrees Fahrenheit.

1. 5° C

2. 35° C3. 20° C4. 15° C

Page 32: How to Read a Thermometer A thermometer is an instrument that is used to measure temperature.