Save
Upgrade to remove ads
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

Plate boundaries

Plate boundary terms and definitions

QuestionAnswer
Divergent boundary A place where two plates move apart from each other
Rift valley Something that forms at a divergent boundary and is like a valley.
Wegener's theory Continental drift
Convergent boundary A place where two plates move towards each other
Plate tectonics A theory that explains how the plates form and move
Lithosphere Crust and upper mantle
Sea-floor spreading When magma pushes through the oceanic crust and pushes it away from a mid ocean ridge.
Super continent in Wegener's theory of continental drift Pangaea
Transform boundary When two plates slide past each other and create a fault
Plate boundary Where two plates meet
Crust Thinnest layer of Earth, made of mostly basalt and granite
Asthenosphere layer between crust and mantle, made of soft rock
Wegener's evidence Mountain formations, coal beds, glacier scratches, plants, animal fossils
Mid ocean ridge Something formed when a divergent boundary in the ocean continues and continues sea-floor spreading at the ridge
Core The center of the Earth
Created by: 15afu
Popular 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