Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Unit 3A

Energy in the Atmosphere 8th grade

TermDefinition
thermal energy a form of energy that is the total kinetic energy (motion) of atoms and molecules in matter. (The faster the atoms move, the warmer the matter.)
atmosphere the whole mass of air surrounding Earth
wind a natural movement of air from an area of high density and pressure to an area of low density and pressure
air pressure the force exerted by the atmosphere on Earth’s surface by the weight of the air above the surface
convection transfer of thermal energy through circular motion caused by heating and cooling in fluids (liquids and gases)
energy the ability to do work
ocean currents directional movement of ocean water; surface currents result from steady winds over the ocean surface; deep currents result from density variations due to temperature and salinity differences.
hydrosphere the water all around Earth
solar radiation electromagnetic energy emitted from the Sun; travels through space in waves (rays)
water cycle the continuous movement of water in the air, on the surface, and below ground
sun the star nearest to Earth and the center of our solar system; the source of almost all energy on Earth
weather the state of the air at a certain time and place
atmospheric contents 78% nitrogen, 21% oxygen, tiny amounts of other gases
fluid any substance that can flow. This includes liquids and gases.
conduction transfer of thermal energy that requires contact between the atoms or molecules
humidity a measure of the amount of water vapor in the air
water vapor the gaseous state of water; invisible to people
evaporation a process that changes water from liquid to gas form
condensation a process that changes water from gas to liquid form
transpiration plants give out water vapor as they exchange gases during photosynthesis
infiltration water moves from the surface into the ground, using pore spaces to move further down by the force of gravity
percolation water moves through the ground until it reaches the water table
precipitation any form of water coming from the atmosphere: rain, snow, sleet, fog, dew
respiration animals give out water vapor as they breathe to get oxygen for energy
runoff the draining away of water (and substances carried in it) from the surface of an area of land, a building or structure, etc.
groundwater water stored under the ground, either in pore spaces or larger bodies of water
water table the top level of the saturated area of ground water
saturated all the available pore spaces are filled with water
pore space all the open spaces between particles of soil or rock
Popular Earth Science sets

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards