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31 Cards in this Set

  • Front
  • Back
Read page 393.
Name the three factors that affect air pressure.
altitude
number of molecules of air
temperature
Read pages 394-397.
What are the 4 main layers of the atmosphere?
troposphere
stratosphere
mesosphere
thermosphere
Read pages 394-397.
Name the layer where weather occurs.
troposphere
Read pages 394-397.
Name the layer that contains ozone.
stratosphere
Read pages 394-397.
Explain the importance of ozone.
ozone absorbs harmful ultraviolet radiation
Read pages 398-399.
Name the three ways that heat energy can be transferred from one material to another.
convection
conduction
radiation
Read pages 398-399.
Name the way heat energy moves through Earth’s atmosphere?
radiation
Read page 399.
Explain how convection currents are created.
Air that is heated at the ground becomes less dense and starts to rise. This air is replaced by cooler air that is more dense and sinks. The continual process of warmer less dense air rising and coller, more dense air sinking creates a circular motion called a convection current.
Read page 371.
In which ocean would you find El Nino?
Pacific
Read pages 422-423.
State the 5 processes of the water cycle.
evaporation
condensation
precipitation
runoff
transpiration
Read 426-427.
Write the prefix that means precipitation might fall from the cloud.
When -nimbus or nimbo- are part of a clouds name, it mean precipitation might fall from the could.
Read 426-427.
Name the 2 types of clouds that are associated with stormy weather.
Cumulonimbus is a rain producing cumulus cloud and nimbostratus is a rain producing stratus cloud.
Read 426-427.
Explain how a cloud forms.
Clouds form when warm air rises and cools. As the air rises it becomes saturated. At saturation, water vapor condenses on small particles like dust, smoke, and salt. This is a cloud!
Read page 432.
Describe the weather changes a person would experience as a cold front passes by.
First you would experience relatively warm temperatures. Then there would be a short period of heavy rain and possibly thunderstorms. This would be followed by colder temepratures.
Read page 432.
Describe a picture of a cold front. Where is the warm air? Cold air? What is the shape of the frontal boundary?
A cold front is a steep boundary between cold and warm air masses. The warmer air is in front of the boundary and colder air behind the boundary. The front moves quickly so the period of rain activity is relatively short.
Read pages 440-443.
Name the weather instrument used to measure air temperature.
thermometer
Read pages 440-443.
Name the weather instrument used to measure air pressure.
barometer
Read pages 440-443.
Name the weather instrument used to measure wind speed.
anemometer
Read pages 440-443.
Name the weather instrument used to measure wind direction.
wind vane
Read pages 440-442.List the 5 elements used to describe the weather.
air temperature, air pressure, wind direction, wind speed,relative humidity
Read page 456.
Explain why the weather on one side of a mountain can be different from the weather on the other side of the mountain.
The mountain acts as a barrier to the precipitation. On the wet side of the mountain, air is forced up were it cools, condenses, and forms precipitation. When the air gets to the other side of the mountain it is dry. This makes this side of the mountain very dry because there is little rainfall.
Read page 453.
List the two factors that determine the climate of an area.
latitude (remember from social studies!), wind patterns, geography, and ocean currents
Read page 453.
State the effect of latitude on temperature.
Latitude is the distance north or south of the equator. The earth's surface receives the most direct sunlight at the equator and it is always warm here. However, the sun's light is less direct north and south of the equator, so the temperature is less.
Think of the activity on Thunderstorm Frequency. How did you know that August had the highest number of thunderstorms?
To determine the month with the greatest frequency of thunderstorms, we color coded each month and then counted the total number of storms. The month with the greatest number had the highest frequency of storms.
Think of the computer activity on Pressure. What kind of pressure is generally associated with cloudy or rainy weather?
Generally speaking, low pressure is associated with cloudy or rainy weather.
Read pages 692-693. Explain how the barometer will measure high pressure.
A barometer measures air pressure. High air pressure will push down on the balloon covering the can. Since it is elastic, the cover will move down under the force of this pressure. The needle marker will then move up indicating high pressure.
Read pages 690-691. Explain how this anemometer works.
The outer cups will spin from the force of the wind. If the wind is stronger, the cups will move faster. If the wind is not as strong, the cups will move slower.
Read page 432.
Describe a picture of a warm front. Where is the warm air? Cold air? What is the shape of the frontal boundary?
The boundary of a warm front is not very steep. Strtus clouds form on the warm side of the front. The warm air is on the back side of the front and the cold air is on the front side of the front.
Read page 432.
Describe the weather changes a person would experience as a warm front passes by.
First the temperature would be cold or cool. As the front approaches, clouds will gradually form. There would be a relatively long period of drizzle or light precipitation. This would be followed by gradual clearing and warmer temperature.
Look at figure 22 on page 437 and figure 23 on page 438. What is the name of this storm? Draw a picture.
This is a radar image of a hurricane. This looks like the hurricane images we observed at the beginning of the school year!
Look at figure 30 on page 442. What is the name of this storm?
This is a radar image of a tornado producing thunderstorm.