In what category do we put the planets that are made of gas and ice?

What TWO measures of distance do we use in astronomy?

Which category of planets have more moons?

What accounts for 99% of the solar system's total mass?

What is the movement of one object around another?

Because gravity is inconsistent in space, we measure the size of planets by ____________.

The Jovian planets are primarily made of ____________.

The Terrestrial planets are primarily made of ____________.

Even though we may not be able to see them, all of the __________ planets have rings.

Each planet __________ and __________ as it orbits the Sun.

Which planet is closest to the sun?

Which planet is second in line from the sun?

Which planet is third in line from the sun?

Which planet is fifth in line from the sun? Right after the asteroid belt.

Which planet is sixth in line from the sun?

Which planet is seventh in line from the sun?

Which planet is eighth in line from the sun?

What word is defined as "a natural satellite that orbits an object other than the Sun?"

Which is the hottest planet?

Which planet category always has larger mass?

Which category of planets has warmer temperatures?

What force definitely keeps the planets in their orbits around the sun?