Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

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.

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

Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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



mold A fossil that formed when an organism pressed into mud, leaving a shape that hardened in rock.
evidence Information and facts that help prove something or make you believe that something is true.
index fossil A fossil of a known age that is used to figure out the age of the rock around it.
imprint A mark made by pressing or stamping something on the surface.
replace To put one thing in place of another.
fossil fuel A fuel that formed from the decayed remains of plants and animals.
trace fossil A footprint, track, or made by an organism and preserved in rock.
petrified fossil A fossil that formed when the hard parts of an organism were replaced by minerals.
paleontologist A geologist who specializes in fossils.
sediment Bits of rock, soil, sand, shells, and the remains of organisms.
Created by: sillyname396