Busy. Please wait.
or

Forgot Password?

Don't have an account?  Sign up 
or

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 email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
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

1-2

The Earth in Space

TermDefinition
solar system planets, along with their moons, asteroids and other bodies, and the sun
orbit specific path each planet follows around the sun
revolution one complete circuit around the sun
leap year year with 366 days, which happens every fourth year to make calends match Earth's movement around the sun
rotate to spin on an axis
axis imaginary line that passes through the center of Earth from the North Pole to the South Pole
atmosphere layer of oxygen and other gases that surrounds Earth
summer solstice day that has the most daylight hours and the fewest hours of darkness
winter solstice day of the year that has the fewest hours of sunlight and the most hours of darkness
equinox either of the days in spring and fall in which the noon sun is overhead at the Equator and day and night are of equal length in both the Northern and Southern Hemispheres
Tropics area between the Tropic of Cancer and the Tropic of Capricorn, which has generally warm temperatures because it receives the direct rays of the sun for much of the year
significant important
reverse opposite
identical exactly the same
Created by: akennon