Lunar Phases
The entire lit side of the moon is visible from Earth.
Means "getting bigger"
Waxing
The imaginary line that goes through Earth from the North to South Poles
Axis
One cycle of day and night takes this long
24 hours
The lunar cycle is how long?
29.5 days (will accept 28-30 days)
The moon appears unlit from Earth.
New Moon
Means "getting smaller"
Waning
The path that the Earth takes around the sun (its orbit) is an example of this type of movement
Revolution
Day and night is causes by Earth's _____________
Rotation
Rotation on its axis.
The second full moon in a calendar month
The right half of the moon appears lit from Earth.
First Quarter
Means less than 1/2 is lit up
Crescent
The Earth's ________ on its axis takes 24 hours
Rotation
Sunrise occurs in this direction
What direction does Earth travel around the sun?
Counterclockwise
A small sliver of the left half of the moon appears lit.
Waning crescent.
Means more than 1/2 is lit up
The moon __________ around the Earth
Revolves
Sunset occurs in this direction
West
What direction does Earth rotate?
Counterclockwise?
The moon is almost full, but a small sliver of the right side is UNLIT.
Waning Gibbous.
Means 1/2 is lit up
Quarter
The Earth ___________ around the sun
Revolves
If it is day in North America, it is ___________ in Australia
Night
What direction does the moon travel around Earth?
Counterclockwise