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

PS Investigation 6/7

Vocab Planetary Science

TermDefinition
ACCRETION STICKING TOGETHER
ASTRONOMICAL UNIT (AU) THE AVERAGE DISTANCE BETWEEN EARTH AND THE SUN, ABOUT 150 MILLION KILOMETERS.
GALAXY AN ENORMOUS COLLECTION OF TENS OF MILLIONS TO HUNDREDS OF BILLIONS OF STARS, INTERSTELLAR GAS, AND DUST
GRAVITY A FORCE OF ATTRACTION BETWEEN MASSES.
LIGHT-YEAR (LY) THE DISTANCE LIGHT TRAVELS IN 1 YEAR.
NEBULA A CLOUD OF GAS AND DUST IN SPACE BETWEEN STARS.
ORBITAL RADIUS THE AVERAGE DISTANCE BETWEEN AN OBJECT AND THE OBJECT IT IS ORBITING.
SOLAR SYSTEM A REGION OF SPACE OCCUPIED BY A SYSTEM OF OBJECTS ORBITING A STAR, SUCH AS THE SUN AND ALL THINGS ORBITING IT.
UNIVERSE THE SUM TOTAL OF ALL THINGS THAT CAN BE OBSERVED OR DETECTED.
ANTHROPOCENE A NEW GEOLOGIC EPOCH SOME SCIENTISTS THINK WE HAVE ENTERED BECAUSE OF HUMAN-DRIVEN CHANGES
ATMOSPHERE A LAYER OF GASES THAT SURROUND AN OBJECT, HELD IN PLACE BY GRAVITY.
EXOPLANET A PLANET ORBITING A STAR OTHER THAN THE SUN.
Created by: dsparr
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