Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
sphere
|
a round three deminsional object
|
|
axis
|
imaginary vertical line around which earth spins
|
|
rotation
|
earth spinning on its axis
|
|
revolution
|
earths yearly orbit around the sun
|
|
ellipse
|
elongated, closed curve
|
|
solstice
|
the day when sun reaches its greatest distance north or south of the equator
|
|
equinox
|
when the sun is directly above earths equator
|
|
moon phase
|
different forms that the moon takes in its appearance from earth
|
|
new moon
|
when the moon is between the earth and the sun
|
|
waxing
|
more of the illuminated half of the moon can be seen each night
|
|
full moon
|
all of the moon's surface facing the earth reflects light
|
|
waning
|
when we see less of the moons illuminated half each night
|
|
solar eclipse
|
when the moon moves directly between the sun and Earth and casts its shadow over part of earth
|
|
lunar eclipse
|
when earths shadow falls on the moon
|
|
maria
|
dark colored relatively flat regions of the moon
|
|
impact basin
|
depression left behind an object striking the moon
|
|
how many days does it take for the moon to go around the earth
|
27.3
|
|
what is the order of the moon phases starting with the new moon?
|
new moon, waxing crescent, 1st quarter, waxing gibbous, full, wanning gibbous, 3rd quarter, wanning crescent
|