Moon Phases

Front

Besides the Sun, what is the most obvious object in the sky?

Back

the Moon

Front

How wide is the Moon?

Back

3,500 km

Front

How much of the Moon faces the sun? Options: one quarter, one half, three quarters, all of it

Back

one half

Front

What part of the Moon do astronomers refer to as the night or dark side? Options: the half facing away from the Earth, the half facing away from the Sun, the side that we never see, the dark part of a gibbous moon

Back

the half facing away from the Sun

Front

Which word refers to the shape of the Moon, as it appears to us?

Back

phase

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

Words that have similar etymological histories, like “month” and “Moon” are _____

Back

cognates

Front

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

Back

29.5 days

Front

In which part of the Moon's cycle is it closest to the Sun? (Options: new moon, first quarter, full moon, third quarter)

Back

new moon