The Cycle of the Moon

The video explains the relationship between Earth and its satellite, the moon. It covers the moon's orbit around Earth, which takes 27 and one-third days, and the concept of a lunar month lasting 29 and a half days. The video also discusses the moon's phases, which are caused by the changing positions of the Sun, Earth, and Moon. A review section includes questions about the moon's orbit and the factors affecting its appearance.

Describe the cycle of the moon's phases and how long it takes to complete.

Explain why the moon appears to change shape during its orbit around the Earth.

How long does it take for the moon to complete one full orbit around the Earth?

• 25 1/2 days

• 27 and a third days

• 30 days

• 33 days

What is the duration of a lunar month?

• 32 days

• 29 1/2 days

• 15 1/2 days

• None of the above

What causes the changes in the appearance of the moon?

• The position of the moon

• The position of the sun

• The position of the Earth

• All of the above