Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

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.
We do not share your email address with others. It is only used to allow you to reset your password. For details read 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.
Don't know
remaining cards
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:
restart all cards
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


5th grade

4.6 billion years old the approximate age of Earth
sedimentary rock rock formed by layers of sediment cemented together
igneous rock rock formed from melted/cooled lava and magma
metamorphic rock rock changed by heat and pressure
fossils provide information and conditions of the past
crust, mantle, outer core, and inner core the four layers of Earth
convergent boundaries tectonic plates that move together
divergent boundaries tectonic plates that move apart
transform boundaries (strike-slip or sliding boundaries) tectonic plates that slip past each other horizontally
weathering the breaking down of rocks
erosion the movement of sediments by water and wind
deposition sediments being deposited in new locations
sediments broken down pieces of rock
Created by: jrt66