The Sun-Earth-Moon System Flashcard

Front

What is a solstice?

Back

A solstice is a day when Earth's rotation axis is tilted the most towards or away from the Sun.

Front

What is the main source of heat and light in our Solar System?

Back

The Sun.

Front

What is the day called when Earth's rotation axis is the most toward or away from the Sun?

Back

Solstice.

Front

How often does a Leap Year occur?

Back

Every 4 years.

Front

Does the Earth revolve around the Sun?

Back

Yes, the Earth revolves around the Sun.

Front

What is an equinox?

Back

An equinox is a day when day and night are of approximately equal length, occurring twice a year.

Front

What causes the seasons on Earth?

Back

The tilt of Earth's rotation axis and its orbit around the Sun.

Front

What is the Moon's role in the Earth-Moon-Sun system?

Back

The Moon orbits the Earth and affects tides and night illumination.

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; a lunar eclipse occurs when the Earth passes between the Sun and the Moon, casting a shadow on the Moon.

Front

What is the shape of Earth's orbit around the Sun?

Back

Elliptical.