Seasons, Apparent Motion of the Sun, Moon, Tides, & Eclipses

Front

What causes the seasons on Earth?

Back

The tilt of the Earth's axis causes the seasons.

Front

How long does it take for Earth to complete one revolution around the Sun?

Back

365 days.

Front

What are the two types of shadows involved in a solar eclipse?

Back

Penumbra and Umbra.

Front

What occurs during the Winter Solstice?

Back

It is the shortest day of the year.

Front

What happens during the Autumnal and Vernal Equinoxes?

Back

There is equal day and night.

Front

What is the tilt of the Earth's axis?

Back

The Earth's axis is tilted at an angle of approximately 23.5 degrees.

Front

What is a solar eclipse?

Back

A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking 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, casting a shadow on the Moon.

Front

What is the difference between a penumbra and an umbra?

Back

The umbra is the darkest part of a shadow, while the penumbra is the lighter outer part.

Front

What is the significance of the Summer Solstice?

Back

It is the longest day of the year.