Duplicate of The Solar System

Which of the inner planets does not have an atmosphere?

The source of short-period comets is the_______

A comet develops a tail because of______.

What is a planet's spinning movement called?

Which of the following is a common trait of the inner planets?

This planet has colorful clouds in bands of white, red, tan, and brown.

Which space object originates in the Oort Cloud?

Mercury is closer to the Sun but Venus is hotter. Why? 

All of the outer planets have which of the following?

Small pieces of rock that enter Earth's atmosphere and burn up before they hit the ground are?

Which is the correct order of the inner planets

The order of the outer planets outward from the Sun is:

This causes space objects to revolve around the Sun.

The outer planets are mainly composed of which of the following?

Identify Jupiter's four largest moons.

What is a planet's movement around the Sun called?

This planet is sometimes called the Red planet because its soil contains iron oxide.

A small rocky particle from space that strikes Earth's ground is a _____.

A depression formed when a meteorite hits Earth is a(n)?

What characteristics do dwarf planets have.

What is the basic shape of every planet's orbit?

Scientists believe that all of the outer planets have this physical property.

Which dwarf planet is located in the asteroid belt?

What is the basic astronomical unit based on?

Long-period comets come from an area at the outer edge of the solar system called the_______.