Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why

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.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.


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.

Remove ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
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

science 22-2

moon phases

wordDefinition
moon phases the changes in appearance of the moon as it orbits earth every 29-1/2 days
new moon the moon phase when the side facing earth is complletly dark, because the moon is between earth and the sun.
waxing describes the moon as its visible lightened area grows larger during the lunar circle.
first quarter the moon phase halfway between new moon and full moon
full moon the moon phase when the side facing earth is completely lighted
waning describes the moon as its visible lighted area grows smaller during the lunar cycle
thrid quarter the moon phase halfway between full moon and new moon
solar eclipse the passing of the moon dsirectly between earth and the sun.
lunar eclipse the passing of earth between the sun and moon.
maria dark,flat rregions of ancient lava on the moon
Created by: player