Weather Trivia

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Weather Trivia

• Do you know your
• weather ?

2
What is climate?

• Name 4 factors that
• affect climate.
• (Be able to explain each)

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Climate is weather over a long period of time.

• 1) Uneven heating of Earth
• tilt of earth spherical
• 2) Large bodies of water
• create land sea breezes
• 3) Mountains
• create windward (wet) leeward (dry) sides
• 4) Ocean Currents
• moderate temperatures by moving water

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• Name the 3 climate zones and tell about each one.

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Polar Near poles, cold most of year, not direct
sun

• Tropical
• warm
• direct sun
• near equator

• Temperate
• 4 seasons
• most people live here

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• How do mountains affect climate?

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Air rises to go over mountains, cools, condenses,
and rains on windward side. Leeward side is dry.
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Explain the water cycle.
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• Evaporation water turns to water vapor
• Condensation the water vapor cools, so it
  condenses or makes water droplets which is a
  cloud.
• Precipitation the water droplets fall to the
  Earth
• Collection or Accumulation water goes to rivers,
  lakes, oceans, ground water

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• Water Cycle

11
Describe a sea breeze .
Land warms up faster during the day, so the warm
air rises and moves out to the ocean. The cooler
ocean air moves to the land.
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How do ocean currents affect climate?
Moderate temperatures in the world Warm waters
moves to the poles and cold water moves to the
equator.
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• Name 4 conditions that affect climate.

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• 1) Uneven heating of the Earth because it is a
  sphere and tilted on its axis.
• (3 climate zones)
• Mountains cause the windward side to receive more
  rain or snow. Leeward side is drier.
• Land and Sea Breezes cause cool winds.
• Ocean Currents moderate the climate.

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• Name this type of cloud.
• They are high, wispy, and sometimes made from ice
  crystals.

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• Cirrus

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• These clouds are puffy and piled.

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• Cumulus

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• These clouds are lower and layered.

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• Stratus

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What does nimbus mean?

• What kind of clouds are thunderheads?

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Rain

• RAIN
• Cumulonimbus Clouds

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What is fog?

• Why do you breathe out a cloud in the winter
  outside?

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Fog is a stratus cloud near the ground.

• You make a cloud by breathing out warm air. The
  outside cold air cools it, so the water vapor in
  the air changes to water droplets. This is
  condensation and makes a cloud.

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• Cloud types heights

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• What is the composition of air?

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Composition of Air

• 78 Nitrogen
• 21 Oxygen
• 1 other
• ( water vapor, CO2, argon)

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• Name the four layers of the atmosphere starting
  closest to the Earth.

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Layers of Atmosphere

• Troposphere - Weather
• Stratosphere - Ozone
• Mesophere- coldest
• Thermosphere - hottest

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What is an air mass?

• What does mT stand for?
• What does cP stand for?
• What kind of air mass would originate from the
  middle of Canada?

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An air mass is a body of air that has about the
same temp. moisture.

• 1) mT - maritime tropical which is wet and warm
• 2) cP - continental polar which is dry and cold
• 3) An air mass over Canada would bring dry and
  cold air. cP

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(No Transcript)
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Which instrument measures the temperature?

• At what temperature does water freeze in C and F?
• At what temperature does water boil in C and F?
• What is room temperature?

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Thermometer

• Freezes 0 C 32 F
• Boils 100 C 212 F
• Room Tem 20 C 68 F

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What instrument measures wind speed?

• A) wind vane
• B) anemometer
• C) thermometer
• D) barometer

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• Anemometer

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What instrument measures the air pressure?

• A) Wind vane
• B) Anemometer
• C) Barometer
• D) Thermometer

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• Barometer

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What instrument is used to measure wind direction?

• A) wind vane
• B) anemometer
• C) thermometer
• D) barometer

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• Wind Vane
• It tells the direction the wind is coming from.
  This wind vane is showing an East wind.

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What are people called who use weather
information to predict the weather?

• What do meteorologists use to PREDICT weather?

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Meteorologists

• 1) Weather Maps
• 2) Radar
• 3) Satellites
• 4) Weather Tools
• (thermometer, anemometer, wind vane, rain gauge)

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• Describe a
• cold ,
• warm,
• and stationary front.
• What are their symbols?

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• Cold front is cold air mass replacing warm air.
  It can bring thunderstorms.

2 air masses not moving
Warm air mass
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What is the amount of moisture in the air
compared to the amount of moisture it can hold at
that temperature?
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• Relative Humidity

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Name the 4 forms of precipitation.

• How is hail formed?

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Rain, snow, sleet, hail

• The water droplet freezes in the cloud. The hail
  is blown up and down in the cloud. Layers of ice
  keep building up on it until it finally falls to
  the Earth as hail.

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What is sleet?

• What is snow?

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Sleet is water droplets that have frozen on the
way to Earths surface.

• Snow is 6 sided ice crystals. When the water
  vapor condensed or cooled, it was so cold that
  ice crystals formed instead of water droplets.

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What is dew?

• What is frost?

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Dew is condensation on the ground. The water
vapor cooled and formed water droplets.

• Frost is frozen dew. The air was so cool that ice
  crystals formed instead of water droplets.

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What is the dew point?
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• The dew point is the temperature that it would
  have to cool down to for condensation to occur.

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What does it mean if the air pressure is going
down or falling?
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• The weather is active or changing.

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Name the 4 different types of winds created by
the rotation of the Earth and cool air from the
poles going towards the equator and the warm air
from the equator going towards the poles.
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• Polar Easterlies
• Prevailing Westerlies (we live here)
• Trade Winds
• Doldrums (equator, little wind)

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What is the difference between climate and
weather?
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• Weather the condition of the atmosphere right
  now (the temperature, humidity, wind direction
  speed)
• Climate the weather of an area over a long
  period of time (Iowa has 4 seasons,warm summers
  and cold winters with snow)

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What causes day and night?
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• Rotation of the Earth

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How long does it take the Earth to revolve around
the sun?
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• 365 1/4 days or 1 year

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During which season do we in Iowa have the most
hours of sunlight? Why?
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• In the summer
• because we are tilted towards the sun
• we have about 14 hours of sunlight
• Sept. 22 Mar. 22 the fall and spring equinoxes
  have hours of sunlight darkness