Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/12

Click to flip

12 Cards in this Set

  • Front
  • Back
Atmosphere
The mass of air surrounding a planet.
Atmospheric pressure
The pressure exerted by the atmosphere on all objects within it.
Barometer
An instrument used to measure atmospheric pressure.
Homosphere
The lower layer of earth's atmosphere, which exists from ground level to roughtly 80Km (50 mi.) above sea level.
Troposphere
The region of the atmosphere that extends from ground level to roughtly 11 Km (7 mi.) above sea level.
Stratosphere
The region of the atmosphere that spans altitudes of 11 Km to 48 Km (30 mi.).
Mesosphere
The region of the atmosphere that spans altitudes of 48 Km to 80 Km (50 miles).
Temperature gradient
Term often used to describe the steady drop in temperature (in the Troposphere) as altitude increases.
Jet streams
Narrow bands of high-speed winds that circle the earth blowing from west to east.
Heat
Energy that is being transferred.
Temperature
A measure of the energy of motion in a substance's molecules.
Heterosphere
The upper layer of earth's atmosphere, which exists higher than 80 Km (50 miles) above sea level.