#4 Moon Phases (ceb) FLASHCARDS

Front

How wide is the Moon?

Back

3,500 km (2160 mi)

Front

How much of the Moon faces the sun?

Back

one half

Front

What is the name of the dividing line, separating the lit and unlit sides of the Moon?

Back

terminator

Front

The Moon orbits the Earth roughly once per _____

Back

month

Front

What is the length of time for the Moon to go through all its phases?

Back

29.5 days

Front

Which phase is considered to be the beginning of the Moon’s cycle? Options: new moon, first quarter, full moon, third quarter

Back

new moon

Front

growing or getting bigger

Back

waxing

Front

Which term means "swollen or convex"? Options: waxing, waning, crescent, gibbous

Back

gibbous

Front

When the illuminated part of the Moon is shrinking, it's called:

Back

waning

Front

When you see a NEW moon, the Sun-Earth-Moon forms approximately what angle?

Back

0º