Transcript Cirrus clouds - Allendale School

• Did you ever…
» wonder why it rains?
» think about where hail comes
from?
» want to know what kinds of
clouds are in the sky?
» find facts about weather
interesting?
If you are curious, click here to learn more.
The water cycle
describes the journey
water takes as it
circulates from the
land to the sky and
back again.
• Be able to understand that the water cycle is a continuous
process.
• Define evaporation, condensation, and precipitation.
• Identify basic cloud types.
• Explain weather that accompanies certain clouds.
•
Have you drank a glass of fresh water recently?
•
The water in your glass may have fallen from the sky as rain just last week, but
the water itself has been around pretty much as long as the earth has! When
the first fish crawled out of the ocean onto the land, your glass of water was
part of that ocean. When the Brontosaurus walked through lakes feeding
on plants, your glass of water was part of those lakes. When kings and
princesses, knights and squires took a drink from their wells, your glass of
water was part of those wells.
•
The water cycle never stops. The water is constantly being recycled and
reused!
•
This will make you think when you take another drink!
• Evaporation is when the sun
heats up water in rivers or lakes
or the ocean and turns it into
vapor or steam. The water
vapor or steam leaves the river,
lake, or ocean and goes into the
air.
Evaporation
Part one of the
water cycle
»
Do plants sweat?
People sweat and plants
transpire. Transpiration is the process
by which plants lose water out of their
leaves. Transpiration gives evaporation
a bit of a hand in getting the water vapor
back up into the air.
•
Water vapor in the air gets cold and changes
back into liquid, forming clouds.
Clouds come in many shapes and forms. Some are high in the sky,
while others are so low they touch the ground. No matter what
shape or elevation, clouds form the same way, by having water
vapor condense onto small solid particles like dust, sea salt, and
pollution.
Part 2 of the
Water Cycle
Condensation
Evaporation
Cumulus Clouds
Cirrus Clouds
Stratus Clouds
Cumulus clouds
are the puffy clouds
that look like puffs
of cotton.
Cirrus clouds are
very wispy and
feathery looking.
Stratus clouds
are horizontal,
layered clouds
that stretch out
across the sky like
a blanket.
Turn the page to find out what type of weather these clouds bring!
Cirrus clouds are the most common of the
high clouds. They are composed of ice and
consist of long, thin, wispy streamers.
Cirrus clouds are usually white and predict
fair weather. Sometimes called mares tails,
they stream with the wind. By watching the
movement of cirrus clouds you can tell
from which direction weather is
approaching. The appearance of cirrus
clouds usually indicates that a change in
weather will occur within 24 hours.
What do Cirrus clouds indicate?
1.
Fair weather
2.
Which direction weather is approaching
3.
A change in weather may be on the way.
Stratus clouds are uniform gray in
color and almost cover the entire
sky. Light mist or drizzle is
sometimes associated with Stratus
clouds. A Stratus cloud touching
the ground is fog.
What do stratus clouds indicate?
1.
Rain or light mist
2.
Fog
What do cumulus clouds indicate?
Vertically developing clouds are the
Cumulus (puffy) type. These small,
lumpy clouds are low "fair weather"
clouds. However, as they develop
vertically (up) they may go from
small, fair weather clouds to large,
boiling, vertically-growing monsters
called cumulonimbus. These clouds
are known as storm clouds which
bring heavy rain, snow, hail, lightning,
and tornadoes.
1.
Fair weather is here.
2.
Tall, vertical ones may bring
huge storms.
Rain or Snow???
Rain occurs when tiny cloud
droplets collide to form bigger
droplets. This keeps happening
until the droplet is too heavy for
the air to support it. The droplet
then begins to fall, colliding with
more cloud droplets as it gains in
size. If the liquid water does not
encounter a deep layer of subfreezing air, it will remain liquid
and fall to the ground as rain.
Snow occurs when the layer
of the atmosphere from the
surface of the earth through the
cloud is entirely below
freezing. The precipitation falls
from the cloud as snow and does
not melt at all while falling to
the ground.
Precipitation
Condensation
Part 2 of the Water
Cycle
Part 3 of the Water Cycle
Evaporation
Part 1 of the Water
Cycle
On your paper, complete the following assessment activities. Click on the
button if you need help. Once you are done getting information, click
come back to this activity page.
to
1.
List the three parts of the water cycle.
2.
Draw pictures of the 3 main types of clouds and compare with what you see in
the sky today. Explain.
3.
Why do you think it sometimes sleets instead of rains.
4.
Look outside. What is the current weather? Describe any precipitation, clouds,
winds, general temperature.
5.
Based on the clouds you see, describe what kind of weather we may have.
6.
How could you have swam in the same water as Jesus Christ?
7.
Describe your favorite type of weather. What type of clouds would you see in
the sky? Would you have precipitation? If so, what type? What would the
temperature would be?
Prepared by Mrs.Gayle Burrer
All Saints Catholic School
For EDU 613
4/3/06