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

Astronomy_2

TermDefinition
Terrestrial Planets One of the highly dense planets nearest to the sun; Mercury; Venus; Earth; Mars
Gas Giants a planet that has a deep, massive atmosphere, such as Jupiter, Saturn, Uranus, or Neptune
Astronomical Unit the average distance between Earth and the sun; approximately 150 million kilometers
Revolution the motion of a body that travels around another body in space; on complete trip along an orbit
Rotation the spin of a body on its axis
Dwarf Planet a celestial body that orbits the sun, is round because of its own gravity, but has not cleared its orbital path
Asteroid Belt the region of space between the orbit paths of Mars and Jupiter in which most asteroids are located
Kuiper Belt a disk-shaped region on the edge of the solar system that contains masses of ice and icy rock, supposed to be the source of comets
Oort Cloud a region of the solar system beyond the Kyper Belt in which billions of comets move in nearly circular orbits unless one is pulled into an elliptical orbit by a passing star.
Comet a small body that gives off gas and dust as it passes close to the sun; a typical comet moves in an elliptical orbit around the sun and is made of dust and frozen gases
Asteroid a small, rocky object that orbits the sun; most asteroids are located in a band between the orbits of mars and jupiter
Meteoroid a relatively small, rocky body that travels through space
Meteor a bright streak of light that results when a meteoroid burns up in earth's atmosphere
Meteorite a meteoroid that reached earth's surface without completely burning up
Prograde Rotation When a planet rotates on it's axis at a less than 90 degree angle clockwise
Retrograde Rotation When a planet rotates on its axis at a 90 or higher degree tilt or in a counter clockwise rotation
Solar System the sun and all of the planets and other bodies that travel around it
Created by: LilahB
Popular 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