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

Earth, Moon, Sun

Astronomy Chapter 1 terms

QuestionAnswer
astronomy The study of the moon, stars and other objects in space.
axis An imaginary line that passes through Earth's center and the North and South poles, about which Earth rotates.
rotation The spinning motion of a planet about its axis.
revolution The movement of a planet about its axis.
orbit The path of an object as it revolves around another object in space.
latitude A measurement of distance from the equator, expressed in degrees north or south.
solstice The two days of the year on which the noon sun is directly overhead at either 23.5 degrees South or 23.5 degrees North.
equinox The two days of the year on which neither hemisphere is tilted toward or away from the sun.
vernal equinox The day of the year that marks the beginning of spring in the Northern Hemisphere.
autumnal equinox The day of the year that marks the beginning of fall in the Northern Hemisphere.
phase One of the different shapes of the moon as seen from Earth.
eclipse The partial or total blocking of one object by another.
solar eclipse The blocking of sunlight to Earth that occurs when the moon is between the sun and Earth.
lunar eclipse The blocking of sunlight to the moon that occurs when Earth is directly between the sun and moon.
umbra The darkest part of a shadow.
penumbra The part of the shadow surrounding the darkest part.
tide The rise and fall of the level of water in the ocean.
gravity The attractive force between two objects; its magnitude depends on their masses and the distance between them.
spring tide A tide with the greatest difference between low and high tides.
neap tide A tide with the least difference between low and high tides.
satellite Any object that revolves around another object in space.
geosynchronous orbit The orbit of a satellite that revolves around Earth at the same rate that Earth rotates.
telescope A device built to study distant objects by making them appear closer.
crater A round pit on moon's surface.
maria Dark, float regions on the moon's surface.
Created by: melaniebird
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