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

planet earth quiz

earth science

QuestionAnswer
what are earth's three spheres? lithosphere, atmosphere, and hydrosphere
what is the densest of earth's spheres? the lithosphere
what is the Atmosphere? a layer of gases surrounding the earth above the liquid water and rocks
what are the gases that make up most of the atmosphere? nitrogen and oxygen
what is the hydrosphere? a layer of water that lies between the atmosphere and rocky material
what makes up the hydrosphere? oceans, lakes, rivers, icecaps, etc...
what elements make up water? hydrogen and oxygen (h2o)
what shape is the earth the earth is almost a perfect sphere (oblate spheroid)
due to earth's rotation... it is slightly bulged at the equator and slightly flattened at the poles
the altitude of polaris... increases/decreases depending on your latitude
polaris is the north star
polaris remains in a fixed position above the north pole
what is the equator? an imaginary horizontal line circling the earth halfway between the north and south poles
the equator is the reference line for latitude (0 degrees latitude)
what is the prime meridian? an imaginary vertical line from the north pole to the south pole that passes through greenwich, england
the prime meridian is the reference line for longitude (0 degrees longitude)
what is the international date line? 180 degrees east or west of the prime meridian
the international date line is on the direct opposite side of the earth from the prime meridian
the prime meridian and the international date line connect at the poles (north and south) and form a circle that cuts the earth in half vertically (eastern and western hemispheres)
what is latitude? the angular distance north or south of the equator measured from the center of the earth
the lines of latitude lines run east to west but measure north to south
what is longitude? the angular distance east or west of the prime meridian measures from the center of the earth
the lines of longitude run north to south but measure east to west
the world rotates 360 degrees in 24 hours, so how many degrees does it spin in 1 hour? 15 degrees
the world has _________ time zones 24
each time zone is _________ degrees apart 15
what is the logical starting point for time zones? greenwich, england
the world rotates counterclockwise (west to east)
time zones to the east are _________ of the time zones to the west ahead
Created by: keira 9th
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