Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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


The Earth in Space

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 calenders 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
Popular Geography sets




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:
restart all cards