The world around us
20
We use scientific instruments to measure atmospheric conditions.
Scientists called
meteorologists
use instruments to measure the atmospheric conditions.
Where’s the
coldest place
on Earth?
Measuring the weather
1
Talk to a partner.
a)
Can we measure something we can’t see?
b)
What types of precipitation can we measure?
R E A D & T H I N K
A
rain gauge
measures
precipitation. It can
measure rain, snow or hail.
We measure precipitation
in millimetres (mm).
Barometer
: this tells us about the air pressure,
which can indicate if it will rain.
Weather vane
: this tells us the direction of
the wind. It is north, south, east or west.
Thermometer
: this measures
the temperature in the air. We
measure temperature in degrees
centigrade (ºC). A thermometer is
a glass tube with liquid inside. The
liquid rises and falls according to
the temperature.
Anemometer
: this tells
the speed of the wind.
We measure wind speed
in kilometres per hour.
