Exploring Inner and Outer Planets

Which of the following is a characteristic of inner planets?

• They are made mostly of gas.

• They have rocky surfaces.

• They have many rings.

• They are very large.

Which planet is not considered an inner planet?

• Mercury

• Venus

• Earth

• Jupiter

What is a common characteristic of outer planets?

• They have solid surfaces.

• They are smaller than inner planets.

• They have thick atmospheres made mostly of hydrogen and helium.

• They have no moons.

Which of the following planets is an outer planet?

• Mars

• Venus

• Saturn

• Mercury

What is one major difference between inner and outer planets?

• Inner planets have rings, outer planets do not.

• Outer planets are closer to the Sun.

• Inner planets are smaller and rockier, while outer planets are larger and gaseous.

• Outer planets have no moons.

Which of the following is true about the moons of outer planets?

• They are all the same size.

• They are made of gas.

• They vary in size and composition.

• They orbit the Sun directly.

Which planet has the most known moons?

• Earth

• Mars

• Jupiter

• Venus

Which of the following is a characteristic of the planet Mars?

• It has a thick atmosphere of hydrogen and helium.

• It is known for its rings.

• It has a rocky surface with the largest volcano in the solar system.

• It is the largest planet in the solar system.

Which planet is known for its prominent ring system?

• Earth

• Saturn

• Mars

• Mercury

How did the solar system form?

• From a giant explosion of a star.

• From a cloud of gas and dust that collapsed under gravity.

• From the collision of two galaxies.

• From the cooling of a large planet.

Tags

NGSS.MS-ESS1-2