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
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 5: Vocabuary

TermDefinition
Umbra The innermost and darkest part of Earth's shadow during a lunar eclipse.
Penumbra A spreading con of lighter shadow around an umbra.
Solar eclipse The sun seems to darken because the Moon's shadow falls on part of Earth.
Lunar eclipse The moon becomes dark because it passes through Earth's shadow.
Eclipse Occurs when a shadow makes the sun or moon appear to glow.
Seasons Divisions of the year marked by changes of weather, ecology and amount of daylight. Seasons result from Earth's orbit around the sun and earth's axial tilt 23.5 degrees.
Axis An imaginary line about which a body rotates. (Earth rotates on its axis once every 24 hours.)
Orbit One complete circuit around an orbited body.
Solstice Either of the two times in the year, the summer solstice and winter solstice, when the sun reaches its highest or lowest point in the sky at noon, marked by the longest or shortest days.
Equinox Either of the two times each year (as about March 21 and September 23) when the sun crosses the equator and day and night everywhere on earth of approximately equal length.
Revolution The movement of an object in a circular or elliptical course around another.
Rotation A circular movement of an object around a center (or point) of rotation.
Waxing The moon at any time after new moon and before full moon, because its illuminated area is increasing.
Waning The moon any time after full moon and before full moon, (so called because its illuminated area is decreasing.)
Crescent Partially illuminated, but less than half.
Gibbous More than half, but less than fully illuminated.
Quarter Half illuminated
Solar Refers to the sun
Lunar Refers to the moon
Hemisphere Top or bottom half of the Earth
Alignment Arrangement in a line
Phases A stage in the process of change; a particular appearance or state in a regularly recurring cycle of changes.
Tide The rise and fall of ocean water that occurs every 12.5 hours or so.
Spring Tide A tide with the greatest difference between consecutive low and high tides. (Lowest Low-Tide and Highest High-Tide)
Neap Tide A tide the least difference between consecutive low and high tides. (Highest Low-Tide and Lowest High-Tide)
Created by: user-1547344
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