Save
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
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

PS Inv. 1-2

FOSS Planetary Science Inv. 1-2

QuestionAnswer
geosphere Earth's core, mantle and crust
hydrosphere the interacting water on, under, and above Earth's surface
atmosphere a layer of gases that surround an object, held in place by gravity
biosphere a system of interacting living organisms
system a collection of interacting parts
waning getting smaller
waxing getting bigger
solar angle the angle at which light passes through the atmosphere; measured from Earth's surface
rotation spinning on an axis
revolution the path one object takes to travel around another object (orbit)
equinox a day in the year where the sun's rays shine straight down on the equator
gibbous a moon shape that is larger than a first or quarter moon but smaller than a full moon
crescent moon the shape of the moon just after and before the new moon phase
new moon the phase of the moon that occurs when the moon is in the direction of the Sun as seen from Earth
lunar eclipse when the Earth is exactly between the moon and the sun, and the moon passes through Earth's shadow
solar eclipse when the moon passes exactly between Earth and the sun
full moon the phase of the moon that occurs when the moon is opposite the sun as seen from Earth
first quarter moon the phase that occurs halfway between the new and full moon
third quarter moon the phase that occurs halfway between the full and new moon
axis an imaginary axle that a planet spins on
Created by: BMortimer
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