Bresser Junior 88-49701 Instrucciones De Uso página 18

Cloud Chart
Cloud Group
High Clouds = Cirrus
Middle Clouds = Alto
Low Clouds = Stratus
Clouds with Vertical Growth
Special Clouds
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Cloud Height
Above 18,000 feet
6,500 feet to
18,000 feet
Up to 6,500 feet
Cloud Types
Cirrus
Cirrostratus
Cirrocumulus
Altostratus
Altocumulus
Stratus
Stratocumulus
Nimbostratus
Cumulus
Cumulonimbus
Mammatus
Lenticular
Fog
Contrails
Clouds
A cloud is a large collection of very tiny drop-
lets of water or ice crystals. The droplets are
so small and light that they can fl oat in the air.
All air contains water, but near the ground it
is usually in the form of an invisible gas called
water vapour. When warm air rises, it expands
and cools. Cool air can't hold as much water
vapour as warm air, so some of the vapour
condenses onto tiny pieces of dust that are
fl oating in the air and forms a tiny droplet.
When lots of these droplets come together
they become a visible cloud.
Weather Recording
Use the next pages to record your fi ndings.
The sections should be completed after you
have seen the result produced by your Wea-
ther Cube.
So that your records are consistent, fi ll the
information in at the same time each day, if
possible.
When you have fi lled in the information over a
period of time, you will begin to see repeating
patterns, which will help you to begin predic-
ting your local weather.