Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.


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.

Remove Ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
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 tectonics

QuestionAnswer
Mid-ocean ridge In 1960 Harry Hess discovered huge cracks in the ocean crust
Sea floor spreading Along the mid-ocean ridge magma rises through the crust hardened and creates new land
Plate tectonics Explains the formation and movement of the Earth's plates
Plate boundaries Where two plates meet
Transform boundaries Two plates slip past each other in opposite directions Causes faults, which breaks in Earth's crust Earthquakes are common in these areas
Divergent boundaries Two plates move apart In the ocean this forms mid-ocean ridges -place where magma comes up through the ocean 's crust On land Rift Valley's
Convergent boundaries Two plates come together and collide In the ocean this causes ocean trenches to form On land mountains form
Created by: 15rvingelli