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 BB

Lunar Cycle & Tides Vocab. 8th Grade

TermDefinition
lunar cycle the Moon’s repeated pattern of movement and changes in appearance, caused by its revolution around Earth
moon phases the different shapes that the Moon appears to have, caused by the Moon’s orbit around Earth
waxing phases when the Moon appears to be getting larger
waning phases when the Moon appears to be getting smaller
crescent moon the shape of the Moon that is less than a quarter moon
gibbous moon the shape of the Moon that is greater than a quarter moon, but not full
full moon the entire disk of the moon is lit up and visible
first quarter moon half the disk is illuminated, and the cycle is in the waxing phases
third quarter moon half of the disk is illuminated, and the cycle is in the waning phases
new moon when the Moon is between the Sun and Earth so that none of the illuminated portion is seen from Earth
illuminated lit up
lumen the SI unit to measure brightness of light
gram the SI unit to measure mass
meter the SI unit to measure distance
Celsius the SI unit to measure temperature
liter the SI unit to measure volume (not sound)
ocean tide twice daily changes in the level of ocean water
gravitational pull attraction between two objects due to the invisible force of gravity
high tide when the tide causes the ocean to reach its greatest elevation
low tide when the tide causes the ocean to reach its lowest elevation
spring tide the largest daily tidal range, which occur when the Sun, Earth, and Moon line up
neap tide the smallest daily tidal range, which occur when the Sun, Earth, and Moon form a 90 degree angle
tidal range the difference between the heights of the high tide and the low tide in an area
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