The Inner Planets

Front

What are the inner planets of the Solar System?

Back

The inner planets are Mercury, Venus, Earth, and Mars. They are also known as terrestrial planets due to their rocky surfaces.

Front

What is the primary characteristic of the geosphere?

Back

The geosphere includes all the land on Earth, both interior and exterior, encompassing rocks, minerals, and landforms.

Front

What is the difference between rotation and revolution?

Back

Rotation refers to the spinning of a planet on its axis, while revolution refers to the movement of a planet around its star.

Front

What is the average distance from the Earth to the Sun?

Back

Approximately 93 million miles (150 million kilometers), also known as 1 Astronomical Unit (AU).

Front

What is the significance of the planet Venus in terms of atmosphere?

Back

Venus has a thick atmosphere composed mainly of carbon dioxide, leading to a strong greenhouse effect and extremely high surface temperatures.

Front

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

Back

Mercury takes about 88 Earth days to complete one revolution around the Sun.

Front

What is the age of the Solar System?

Back

The Solar System is approximately 4.6 billion years old.

Front

What is the main component of the atmosphere of Mars?

Back

Mars' atmosphere is primarily composed of carbon dioxide, with traces of nitrogen and argon.

Front

What is the term for the path a planet takes around the Sun?

Back

The path is called an orbit.

Front

What is unique about the rotation of Venus compared to other planets?

Back

Venus has a retrograde rotation, meaning it spins in the opposite direction to most planets in the Solar System.