The Solar System

Which of these is the best way to describe our solar system?

• It is a group of stars revolving around a single object.

• It is a group of objects revolving around a single star.

• It is a single star revolving around a group of objects.

• It is a single object revolving around a group of stars.

Which of these facts about the Sun is NOT true?

• It is farther away than most other stars.

• It provides energy in the form of light.

• Gravity holds the planets in orbit around the Sun.

• It is about 93 million miles from Earth.

Moon is related to planet in the same way that planet is related to ________________.

• orbit

• Neptune

• Sun

• dwarf planet

Each letter below is the first letter of a planet's name. What is correct order starting with closest to the Sun?

• M-V-E-M-J-S-U-N

• M-E-N-V-U-S-M-J

• N-U-S-J-M-E-V-M

• E-J-U-M-N-S-V-M

Which planets are the largest ones in our solar system?

• Venus and Earth

• Saturn and Jupiter

• Mars and Mercury

• Neptune and Uranus

Which of these planets would probably be safest to land on because of its solid surface?

• Neptune

• Uranus

• Jupiter

• Mars

Which planets are gas giants?

• Mars and Earth

• Venus and Mercury

• Saturn and Jupiter

• all of the above

If you passed between Mars and Jupiter and saw rocks floating through space together, what would they most likely be?

• comets

• asteroids

• planets

• moons

Which statement about planets and their moons is TRUE?

• Every planet in our solar system has at least one moon.

• The Sun's size is the reason that moons orbit planets.

• Every moon in our solar system revolves round, or orbits, its planet.

• All the moons are covered with oceans and clouds.

What makes Earth different from any other planet?

• It is the only planet known to have ice at its poles.

• It is the only planet with a solid surface.

• It is the only planet that has volcanoes.

• It is the only planet known to support life.