Why do we see a full moon about once a month?Choose 1 answer:Choose 1 answer:(Choice A)   The moon orbits Earth about once every   days.AThe moon orbits Earth about once every   days.(Choice B)   The moon orbits the sun about once every   days.BThe moon orbits the sun about once every   days.(Choice C)   The moon turns on its axis about once every   days.CThe moon turns on its axis about once every   days.

Why does the moon appear to change shape throughout each month? aThe fraction of the moon that is lit by the sun changes. bDifferent parts of the moon become visible from Earth as the moon rotates. cDifferent parts of the sunlit area are visible from Earth due to motions in the Earth-sun-moon system.

Identify the motion that explains why seasons are repeated each year.The Sun spinning on its axisThe Moon orbiting the EarthThe Earth spinning on its axisThe Earth orbiting the Sun

What is true of the Moon's orbital and rotational periods?Group of answer choicesThe rotational period varies with the Moon's phase.They are equal.The orbital period is greatest at full moon.The orbital period is longer.The rotational period is longer.

Describe what causes the phases of the Moon to change each month.Hint: Think about how much of the sunlit side of the Moon we can see during the Moon's orbit.

The same side of the Moon always faces Earth because the period of revolution of the Moon is