Phases of the Moon

The video explains the phases of the moon, their historical significance, and the scientific reasons behind them. It details how the moon's orbit and rotation result in different phases visible from Earth. The video also covers the moon's gravitational effects on Earth's tides, including spring and neap tides, and how these are influenced by the alignment of the sun, moon, and Earth.

Which ancient civilization used the moon's phases to estimate its size relative to Earth?

• Egyptians

• Greeks

• Romans

• Chinese

What is the phase of the moon called when it is not visible from Earth?

• Waning Crescent

• First Quarter

• Full Moon

• New Moon

During which phase is the entire face of the moon visible from Earth?

• Full Moon

• Waning Gibbous

• First Quarter

• Waxing Crescent

How long does it take for the moon to complete a full lunar phase cycle?

• 27.3 days

• 29.5 days

• 30 days

• 31 days

What are the tides called when the sun, moon, and Earth are most aligned?

• Low Tides

• Neap Tides

• Spring Tides

• High Tides