A Family of Planets

This is the average distance between Earth and the sun, approximately 150 million kilometers, and symbolized by the letters AU

List the inner planets in order

List the outer planets in order

________ is closest to the sun, and a day on this planet is only 59 Earth days long

_______ is called Earth's twin and has been shown from radar waves to be volcanic

Because of its thinner atmosphere and greater distance from the sun, _________ is a cold planet. Liquid cannot exist on this planet today but there is evidence that water was on this planet in the past.

The greatest feature of this planet is a storm system that is more than 400 years old and is about 3 times the diameter of Earth. This planet is

According to scientists, this planet is still forming.

This planet is considered a small giant with its axis tilted by almost 90 degrees.

Due to its color, this was once seen as a "water world." However, this color is due to the colors of the gases in this gaseous planet, cloud patterns, and releases of thermal energy.