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
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,Sun,Moon

2-6-2012

QuestionAnswer
axis an imaginary line around which the earth spins
core the central part of the sun
corona the outermost part of the sun's atmosphere
crater a bowl-shaped hole on the moon
day the complete rotation of Earth on its axis; 24 hours; the daylight hours
Earth the third planet from the sun in the solar system
ellipse an oval shape
gravity the force that keeps planets in orbit around the sun and governs the rest of the motion in the solar system
lunar eclipse when the Earth passes between the moon and the sun, casting a shadow on the moon
mare smooth places on the surface of the moon
moon a celestial body that revolves around a planet
night the time from dusk to dawn when no sunlight is visible
orbit the path the moon, planets, asteroids, and comets follow as they travel around the sun
penumbra the outside fringe of the shadow cast by Earth during a lunar eclipse
Created by: AHoldeman
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