Tides and Moon Phases Practice

Front

What is a crescent moon?

Back

A crescent moon is a phase of the moon where less than half of the moon's surface is illuminated, appearing as a thin sliver.

Front

What causes tides on Earth?

Back

Tides are caused by the gravitational pull of the Sun and Moon on Earth's oceans.

Front

How long is a lunar month?

Back

A lunar month is approximately 29.5 Earth days.

Front

What is a full moon?

Back

A full moon is a phase of the moon where the entire face of the moon is illuminated by the Sun.

Front

When do Spring Tides occur?

Back

Spring Tides occur during the new moon and full moon phases.

Front

What is a gibbous moon?

Back

A gibbous moon is a phase where more than half of the moon's surface is illuminated but it is not yet full.

Front

What is a new moon?

Back

A new moon is a phase of the moon where the moon is between the Earth and the Sun, and its illuminated side is facing away from Earth.

Front

What is the difference between waxing and waning?

Back

Waxing refers to the moon's phases when it is becoming more illuminated, while waning refers to the phases when it is becoming less illuminated.

Front

What is the role of the Sun in tides?

Back

The Sun's gravitational pull also affects tides, but its effect is less than that of the Moon.

Front

What is the term for the highest point of a tide?

Back

The highest point of a tide is called high tide.