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Atmospheric

Atmospheric Study Guide

QuestionAnswer
What do we call the layer of gasses that surrounds our Earth? Atmosphere
Which 2 gasses make up most of our atmosphere? Oxygen and Nitrogen
What are 4 layers of our atmosphere? Troposphere, Stratosphere, Mesosphere, and Thermosphere
Which layer of our atmosphere protects us from meteoroids? Mesopshere
Which layer of our atmosphere contains the ozone layer? Stratosphere
Which layer of our atmosphere contains our weather? Troposphere
Which layer of our atmosphere contains very hot, thin air? Thermosphere
What is the force of air pushing down on us? Air Pressure
Which instrument is used to measure air pressure? Barometer
How can air have pressure and density? Warm air is less dense and will rise. Cool air is more dense and
If air is denser, what do you know about its air pressure and mass? Cold air is more dense, so it will sink. When it sinks, it increases in pressure.
If air has more mass, what do you know about its density and pressure? More massive air is cold and more dense. Cold air is under more pressure than
What happens to air pressure, density, and mass as altitude increases? As altitude increases, density decreases, and pressure decreases
As you move up into the atmosphere what happens to air pressure, air density, and air mass? Air pressure decreases, Density decreases, and Mass decreases.
What causes wind? Differences in air pressure
Which is denser, warm air or cold air? Cold air
Wind will always blow from ____pressure to ____pressure? Wind blows from high pressure to low pressure
Why will wind blow from cold areas to warm areas? Air molecules want to move to less crowded areas
Which type of breeze do we call wind that blows from the ocean or lake onto land and occurs during the day? Sea Breeze
Which type of breeze do we call wind that blows from land onto a body of water and occurs during the night? Land Breeze
Why is land warmer than the water during the day and cooler during the night? Land heats up and cools down faster than water
Which is colder, land or water, during the day? Water is cooler because it takes a while to heat up
Which is colder, land or water, during the night? Land is colder at night because it cools quickly
Which direction is the wind blowing during the day? From the water (high pressure) to the land (low pressure)
Which direction is the wind blowing during the night? From the land (high pressure) to the water (low pressure)
What happens to warm air when it is replaced by cool air? Warm air will rise
What are winds that blow over short distances? Local Winds
What are winds that blow over long distances? Global Winds
What creates global winds? Uneven heating of the earth
What is created in our atmosphere when warm air rises at the equator and cold air sinks at the poles? Convection Currents
Why do our winds curve? The Earth is rotating (Coriolis Effect)
What do we call the curving of our winds? Coriolis Effect
What are bands of high speed winds above Earth’s surface? Jet Streams
Why do jet streams affect our weather? They bring cold air from polar regions and warm air from the equator
Winds in the mid-latitudes (between 30 and 60 degrees North and South) that blow from west to east are called…. Prevailing Westerlies
Describe the difference between conduction, convection, and radiation. Conduction: Heat transfer through DIRECT contact Convection: The MOVEMENT of heat Radiation: Heat transfer by waves
How are greenhouse gases helpful? Greenhouse gases help trap heat to keep the Earth from getting too cold
Describe in detail what is happening during a sea breeze. Wind is blowing from the sea where the air is under high pressure. Molecules want to move from high pressure to low pressure areas. High pressure areas are cool and crowded. Low pressure areas are less crowded and warmer.
Describe in detail what is happening during a land breeze. Wind is blowing from the land where the air is under high pressure. Molecules want to move from high pressure to low pressure areas. High pressure areas are cool and crowded. Low pressure areas are less crowded and warmer.
Created by: Seraphim25
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