Moon Phases, Eclipses, Tides

Front

What is the time taken for the Moon to complete one orbit around the Earth?

Back

One month.

Front

What does the bulge of water on the side of the Earth closest to the Moon produce?

Back

High tide.

Front

Which phase of the Moon marks the beginning of its cycle?

Back

New moon.

Front

Identify the moon phase that is growing in illumination and is less than half illuminated.

Back

Waxing crescent.

Front

What fraction of the Moon's surface is illuminated by the Sun at any given time?

Back

One half.

Front

What is a lunar eclipse?

Back

A lunar eclipse occurs when the Earth is directly between the Sun and the Moon, causing the Earth's shadow to fall on the Moon.

Front

What is a solar eclipse?

Back

A solar eclipse occurs when the Moon is directly between the Sun and the Earth, blocking the Sun's light from reaching the Earth.

Front

What are tides?

Back

Tides are the rise and fall of sea levels caused by the gravitational forces exerted by the Moon and the Sun.

Front

What is a spring tide?

Back

A spring tide is a tide that occurs when the Sun, Moon, and Earth are aligned, resulting in higher high tides and lower low tides.

Front

What is a neap tide?

Back

A neap tide is a tide that occurs when the Sun and Moon are at right angles relative to the Earth, resulting in lower high tides and higher low tides.