Which information could help you decide that a planet is an inner planet?

• It is made of gases.

• It is made of solid rock.

• It has lots moons.

• It is giant.

Outer planets are farther to the sun than inner planets are. Outer planets have a longer orbit around the sun. The table shows orbit data for four planets.

Which planets from the table are most likely outer planets?

• Planet 1 and Planet 2

• Planet 1 and Planet 4

• Planet 3 and Planet 2

• Planet 3 and Planet 4

____________ is closer to the sun and usually hotter.

• Saturn

• Mercury

• Jupiter

• Neptune

Mars is also known as the ________ because of its color.

• Red Planet

• Blue Planet

• Yellow Planet

• Purple Planet

Data on four planets in the solar system are shown. Which piece of data best helps determine if a planet is an outer planet?

• Color of the Planet

• Description of the Surface

Earth has a shorter year than Jupiter because Earth ___________.

• is farther from the Sun

• spins faster as it rotates

• has shorter days

• is closer to the Sun

Which planets have similar rocky surfaces to Mercury’s? Choose TWO

• Earth

• Saturn

• Jupiter

• Venus

Which planets have similar surfaces to Saturn’s? Choose TWO

• Earth

• Jupiter

• Uranus

• Mars

The asteroid belt is between which two planets? Choose TWO

• Mars

• Jupiter

• Venus

• Neptune

The diagram shows the first five planets in the solar system with Earth labeled. Which planet is represented by the letter P?

• Mercury

• Venus

• Jupiter

• Neptune