Phases of the Moon and Tides

What causes tides on Earth?

• Underwater volcanic activity

• Gravitational forces exerted by the Moon and the Sun

• Planetary alignment

• Magnetic field fluctuations

How many high tides and low tides occur in a typical 24-hour period?

• 6

• 2

• 8

• 4

During which moon phase do spring tides occur?

• New moon and full moon phases

• Half moon and quarter moon phases

• Waxing crescent and waning gibbous phases

• First quarter and last quarter phases

What is the name of the phase when the moon is completely illuminated?

• Quarter Moon

• New Moon

• Half Moon

• Full Moon

What is the term for the phase when the moon is not visible from Earth?

• Full Moon

• New Moon

• Half Moon

• Blue Moon

What causes the different phases of the moon as seen from Earth?

• Relative positions of the Earth, Moon, and Sun

• Magnetic field fluctuations on Earth

• Rotation of the Milky Way galaxy

• Gravitational pull of Jupiter

What is the term for the phase when the moon is between the Earth and the Sun?

• New Moon

• Blue Moon

• Full Moon

• Half Moon

How long does it take for the moon to complete one full cycle of phases?

• 27 days

• 25 days

• 32 days

• 29.5 days

What is the term for the phase when the moon is on the opposite side of the Earth from the Sun?

• Full Moon

• Quarter Moon

• Half Moon

• New Moon

What is the name of the phase when only half of the moon is illuminated?

• Full Moon

• New Moon

• Waning Crescent

• First Quarter Moon