Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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

Review of vocab and content

earthquake happens at plate boundaries when rock breaks or hits causing shaking and trembling of the ground
plate boundaries edges of plates where rock breaks or hits
plates huge, irregularly-shaped pieces of Earth's crust
bedrock solid pieces of rock found below the soil or water on Earth's surface; creates the Earth's crust
convergent boundary plate boundary created when plates collide
divergent boundary plate boundary created when plates separate
subduction zone convergent boundary created when an denser ocean plate collides with a lighter land plate
subduction happens when the denser ocean plate sinks below the lighter land plate into the mantle where it begins to melt
volcano a weak spot in Earth's crust that lets magma rise to the surface; can form at divergent boundaries or subduction zones
fossil preserved remains or traces of things that lived long ago
sedimentation the second step of fossil formation which occurs when remains are covered quickly in layers of sediment
relative age the age of a rock or fossil compared to other rocks or fossils
igneous rock rock formed when magma or lava cools and hardens
sedimentary rock rock formed when layers of sediment solidify sometimes preserving a fossil inside
absolute age the exact numerical age of a rock or fossil
radioactive decay the process of an unstable atom changing into a stable atom, releasing radiation energy
half-life the time it takes for half of the radioactive atoms in a sample to decay
mountain landform created when two land plates collide
weathering breaking down of rock into smaller pieces
erosion moving broken rock (sediment) from one place to another
deposition laying down sediment in a new location
convection currents the circulation of heated materials; happens in the mantle because of heat from the core; causes plate movement
Created by: user-1491728
Popular Science sets




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:
restart all cards