Page 254 - DK Children's Encyclopedia

Temperature SEE ALSO

▸ ▸ Changing states
p.57

Temperature is a measurement of how hot or cold ▸ ▸ Gases p.117
something is. We measure temperature in degrees of ▸ ▸ Human body
Fahrenheit (°F) or Celsius (°C). We can use a thermometer p.130

to measure the temperature of the air, liquids, ▸ ▸ Liquids p.148
or the human body. ▸ ▸ Measuring p.159
°C °F ▸ ▸ Solids p.234
100 210

200 Digital
thermometer
90 Thermometer
190 A thermometer is an

80 180 instrument that measures
temperature. We read the
170 temperature off it in degrees.
70 160
150

60 140
130
50 120

110
Water boils 40
When liquid water reaches a 100
temperature of 212°F (100°C), Body 90
temperature
it boils and changes from a liquid 30
into a gas called water vapor. 80
20 70
60
Room temperature
We use the term “room 10 50
temperature” to describe
normal conditions. The 40 Water freezes
average temperature of 0 30
a room is 68°F (20°C). When the temperature of the air
20 around us gets to 32°F (0°C), liquid
-10 water freezes and becomes a solid
10 called ice.
Body 0
temperature -20 -10
A healthy body Lightning is
temperature is -30 -20
about 98.6°F (37°C). The red 53,540°F
Doctors can check -30 liquid goes (29,727°C),
body temperature by up or down which makes it the
putting an electric -40 -40 to show the
thermometer in our temperature. hottest natural
mouth or ear. thing on Earth.

Thermometer
252

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