Inner planets are closer to the sun than outer planets are. Inner planets have a smaller orbit around the sun. The table shows orbit data for four planets. Which planets from the table are most likely inner planets?

• A. Planets 1 and 2

• B. Planets 2 and 3

• C. Planets 3 and 4

• D. Planets 1 and 4

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-3

Which piece of data best helps determine if a planet is an inner planet?

• A. Shape of the Orbit

• B. Shape of the Planet

• C. Color of the Planet

• D. Description of the Surface

A planet rotates on its axis. The rotation of a planet causes _______________.

• a. Days
• b. Years

• c. Months

• d. Gravity

What separates the inner and outer planets?

• a. The Sun

• b. The Milky Way

• c. The Asteroid Belt

• d. Saturn’s Rings

Which of these characteristics does not describe the inner planets?

• a. Many moons

• b. Warm

• c. Solid, rocky surfaces

• d. No rings

Which of these planets are the smallest?

• Neptune

• Uranus

• Venus

• Mars

Tags

NGSS.MS-ESS1-3

The revolution of a planet causes _______________.

• Days

• Years

• Seasons

• Gravity

Tags

NGSS.MS-ESS1-1

The rotation of a planet causes _______________.

• Days

• Year

• Seasons

• Gravity

Which of these are the largest?

• Mercury

• Earth

• Venus

• Saturn

Tags

NGSS.MS-ESS1-3

The path an object takes as it revolves around another object in space is called _______________.

• Rotation

• Gravity

• Orbit

• Axis