Earth Moon Sun System Pre-Test

Front

What is a lunar eclipse?

Back

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

Front

How long does it take for the Earth to orbit the Sun?

Back

It takes approximately 365 days for the Earth to complete one orbit around the Sun.

Front

What does it mean when the Moon is waxing?

Back

When the Moon is waxing, it appears to be getting larger each night, moving from a new moon to a full moon.

Front

What does it mean when the Moon is waning?

Back

When the Moon is waning, it appears to be getting smaller each night, moving from a full moon to a new moon.

Front

What causes the phases of the Moon?

Back

The phases of the Moon are caused by the relative positions of the Moon, Earth, and Sun, which affect how much of the Moon's surface is illuminated.

Front

What is the difference between a solar eclipse and a lunar eclipse?

Back

A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking the Sun's light, while a lunar eclipse occurs when Earth blocks sunlight from reaching the Moon.

Front

What is the significance of the angle between the Earth, Moon, and Sun?

Back

The angle between the Earth, Moon, and Sun determines the visibility of the Moon's phases and the occurrence of eclipses.

Front

What is a full moon?

Back

A full moon occurs when the entire face of the Moon is illuminated by the Sun, making it appear fully round.

Front

What is a new moon?

Back

A new moon occurs when the Moon is positioned between the Earth and the Sun, making it invisible from Earth.

Front

What is the term for the time it takes for the Moon to complete one full cycle of phases?

Back

The time it takes for the Moon to complete one full cycle of phases is called a lunar month, which is about 29.5 days.