Eclipses study guide

Front

What is a solar eclipse?

Back

A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking all or part of the Sun's light.

Front

What is a lunar eclipse?

Back

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

Front

What phase of the Moon occurs during a lunar eclipse?

Back

A lunar eclipse occurs during the full moon phase.

Front

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

Back

In a solar eclipse, the Moon blocks the Sun's light; in a lunar eclipse, the Earth blocks the Sun's light from reaching the Moon.

Front

What is the alignment of the Sun, Earth, and Moon during a solar eclipse?

Back

During a solar eclipse, the alignment is Sun - Moon - Earth.

Front

What is the alignment of the Sun, Earth, and Moon during a lunar eclipse?

Back

During a lunar eclipse, the alignment is Sun - Earth - Moon.

Front

What is the umbra in an eclipse?

Back

The umbra is the darkest part of a shadow where the light source is completely blocked.

Front

What is the penumbra in an eclipse?

Back

The penumbra is the lighter part of a shadow where the light source is partially blocked.

Front

How often do solar eclipses occur?

Back

Solar eclipses occur approximately 2 to 5 times a year, but total solar eclipses are less frequent.

Front

How often do lunar eclipses occur?

Back

Lunar eclipses occur approximately 2 to 4 times a year.