Save
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

Earth Science Gr7

Chapter 11

TermDefinition
eon the longest unit of geologic time
era a large division of geologic time that is smaller than an eon
period a unit of geologic time smaller than an era
epoch a division of geologic time smaller than a period
mass extinction the extinction of many species on Earth within a short period of time
land bridge a landform that connects two continents that were previously separated
geographic isolation the separation of a population of organisms from the rest of its species due to some physical barrier such as a mountain range or ocean
Paleozoic era the oldest era of the Phanerozoic eon
Mesozoic era the middle era of the Phanerozoic eon
Cenozoic era the youngest era of the Phanerozoic eon
inland sea a body of water formed when ocean water floods continents
coal swamp an oxygen-poor environment where over a period of time, decaying plant material changes into coal
supercontinent an ancient landmass which separated into present-day continents
dinosaur dominant Mesozoic land vertebrates that walked with their legs positioned directly below their hips
plesiosaur Mesozoic marine reptile with a small head, long neck, and flippers
pterosaur Mesozoic flying reptile with large, batlike wings
Holocene epoch the current epoch of geologic time which began 10,000 years ago
Pleistocene epoch the first epoch of the Quaternary period
ice age a period of time when a large portion of Earth's surface is covered by glaciers
glacial groove groove in solid rock formations made by rocks that are carried by glaciers
mega-mammal large mammal of the Cenozoic era
Created by: carriel
Popular Earth Science sets

 

 



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