Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Study assignment

QuestionAnswer
Preserved trace of an animal or organism fossil
The rock that fossils are commonly found in sedimentary
An imprint of some part of an organism left in sediment mold
Determining weather a rock is the same age or older than or younger than another object relative dating
sediment is deposited in horizontal layers on top of older rock or sediment superposition
A fault or body of rock must be younger than any feature or layer of rock that the fault or rock body cuts through Law of cross cutting
Geologists combined data from all the known rock layers in the world to make a ... Geologic column
How old is earth 4.6 billion years old
the weather conditions in an area over a long period of time climate
A big cylinder of ice obtained from drilling through ice caps or ice sheets ice cores
some extinct animals have been found completely preserved by... permafrost
fossilized tree resin from old trees amber
the process of establishing the age of an object by determining the number of years it has existed (exact age) absolute dating
smallest unit of an element atom
atoms of the same element that have the same number of protons but a different number of neutrons isotope
protons and neutrons are equal stable atom
different # of protons and neutrons unstable atom
Certain length of time after which half of the amount of radioactive element has decayed half lives
decays to argon potassium-40
A radioactive material that decays to lead Uranium-Lead Method
Used to date rocks older than 10 million years. Rubidium-Strontium Method
absolute dating is using ------------- changes in rocks to determine exactly how old they are measureable and predictable
Created by: user-1973281
 

 



Voices

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:
Retries:
restart all cards