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

UNIT 4

QuestionAnswer
rotation the spinning of a body, such as planet on its axis
day the time it takes a planet to complete one full rotation on its axis
revolution the motion of a body that travels around another body in space
year earth completes a full revolution around the sun in 365 days
season is characterized by a pattern of temperature and other weather trends
equinox sunlight shines equally on the northern and southern hemispheres
solstice the area of sunlight is at a maximum in one hemisphere and at minimum in the other hemisphere
satellite a body that orbits a large body
gravity is a force of attraction
lunar phases the moon appearance to change
eclipse is an event during which one object in space casts a shadow onto another
umbra is the darkest part of a shadow
penumbra around it is a spreading cone of lighter shadow
tide they are daily change in the level of the ocean water
tidal range is the different between the levels of ocean water at high tide and low
spring tide spring tides happen when the sun, the moon, and earth form a straight line
neap tide when the sun, earth and the moon form a 90 angle as shown in the illustrations below
Created by: Allanhernandez
 

 



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