This is a slideshare for School for you, part of Your academy.

1. Weather
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2. The weather can be many different things!
• When we talk about the weather, we usually mean how the weather is
on a certain day.
• Is it sunny or rainy?
• Is it cloudy or clear?
• Is it warm or cold?
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3. The weather is…
• Sunny!
• There are no clouds in the sky
• The sky is clear
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4. The weather is…
• Cloudy!
• There are many, thick clouds in
the sky
• The sky is overcast
• There might be rain.
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5. The weather is…
• Rainy!
• Rain is also called percipitation.
• Other examples of percipitation is:
• Snow
• Hail
• Better grab you umbrellas, cheetas!
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6. Weather consists of three main parts:
•Heat
•Moisture
•Winds
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7. Heat
• How hot or cold the weather is
has everything to do with how
close we are to the sun.
• Some pars of the earth are
located closer to the sun. Those
parts will be warmer.
• Therefor, places close to the
equator are warm. Places far
from the equator are cold.
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Cold!
Warm!

8. Heat
• We measure heat with a
thermometer.
• We use different heat scales in
different parts of the world. In
Sweden, we use the heat scale called
Celsius. In USA they use a heat scale
called Fahrenheit.
• You can also use a thermometer to
determine the heat of your body. In
that way you know if you have a fever
or not.
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9. Moisture
• The air is filled with tiny drops of water. Those drops are called
moisture.
• Moisture is an important part of the weather. Moisture is the same
thing as rain, or precipitation.
• There is always moisture in the air, some times there is much
moisture, and some times there is less.
• If the air is hot, it can hold more moisture. If the air is cold it can hold
less moisture, there for, if hot air gets cold quickly, it will rain.
• If cold air gets colder, it will snow.
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10. Moisture becomes
rain
Look at the lake. The water in the
lake is warmer than the air.
Moisture (water drops) will
evaporate and form clouds in the
sky. Evaporate means rise.
The clouds move towards land.
When the clouds reach land they
rise, because the air over land is
colder. When the clouds rise they
become colder.
As they become colder they cant
hold as much moisture. The clouds
will let go of their moisture. It will
rain.
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11. 3. Winds
• Winds are essential to weather, because winds
move weather from one part of a region to
another.
• That is super lucky, otherwise it would rain, and
rain and rain in one place, and be sunny all the
time at another place.
• We measure wind with a anemometer, or a wind
gauge.
• Winds can come from the east, the north, the
south or the west. To determine what direction
the wind is blowing, we use a compass.
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A anemometer
A compass

12. Winds can be calm or stormy
• When we know how fast the wind blows, we can use the Beaufort
scale to determine how the wind will affect land, sea and structures.
• The Beaufort scale ranges from 0-12. Force 0 is calm wind, but force
12 is a hurricane.
• If you don’t have an anemometer you could use a
flag or a sheet of fabric. Look at the picture. If the
wind is strong the flag will stand vertically from the
post.
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13. Make a weather forecast!
• Now you know; that to determine weather you need to figure out:
• How much heat there is
• Is it cold or warm?
• How cold? How warm?
• What is the temperature?
• How much moisture there is
• Is it rainy or dry?
• Is it snowing?
• How the winds are
• Is it stormy?
• What force is the wind according to the Beaufort scale?
• What direction is the wind coming from?
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