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.

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
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

RMS 6 Geologic Time

RMS 6th Grade Science

atmosphere the gaseous portion of the planet
radiometric dating a complex procedure for calculation the absolute ages of rocks
eon the largest time unit on the geologic time scale
era a major division on the geologic time scale that is a subdivision of an eon
igneous rock a rock formed by the solidification of molten magma (melting and cooling)
glaciation covered with or affected by a glacier
Precambrian all geologic time prior to the Phanerozoic Eon
Pangaea proposed supercontinent which began to break apart 200 million years ago and formed the present land masses
period a basic unit of the geologic time scale that is a subdivision of an era
Phanerozoic the part of geologic time represented by rocks containing abundant fossil evidence
fossils the remains or traces of organisms preserved from the geologic past
plate tectonics the theory which proposes that Earth's outer shell consists of large, individiual pieces that interact in various ways
paleontologist a scientist who studies fossils and the history of life on Earth
relative dating a form of dating by placing rocks in their proper sequence
geologic time scale the division of Earth's history into blocks of time
Created by: mrskarney