Eclipses

Front

What is an umbra?

Back

The darkest part of a shadow during an eclipse, where total darkness occurs.

Front

What is a penumbra?

Back

The lighter part of a shadow during an eclipse, where partial darkness occurs.

Front

What is a lunar eclipse?

Back

An event that occurs when the Earth's shadow falls on the Moon, typically visible at night.

Front

What is a solar eclipse?

Back

An event that occurs when the Moon passes between the Earth and the Sun, blocking the Sun's light.

Front

When does a solar eclipse occur?

Back

Only during a new moon.

Front

When does a lunar eclipse occur?

Back

At night, when the Earth is between the Sun and the Moon.

Front

What is the difference between a solar and lunar eclipse?

Back

A solar eclipse occurs during the day when the Moon blocks the Sun; a lunar eclipse occurs at night when the Earth blocks sunlight from reaching the Moon.

Front

What phase of the moon is present during a lunar eclipse?

Back

Full moon.

Front

What phase of the moon is present during a solar eclipse?

Back

New moon.

Front

What is the Earth's shadow?

Back

The shadow cast by the Earth that can cause a lunar eclipse.