Test 2 Review

How many planets are there in our solar system?

• 5

• 7

• 8

• 9

Which type of planets have hard, rocky surfaces?

• Terrestrial planets

• Gas giants

• Dwarf planets

• Moons

Which planet is the largest in our solar system?

• Mercury

• Venus

• Earth

• Jupiter

Which celestial object is considered a dwarf planet?

• Pluto

• Jupiter

• Saturn

• Uranus

What are natural satellites that orbit planets or dwarf planets called?

• Asteroids

• Comets

• Moons

• Meteoroids

Which planet has the most confirmed moons?

• Earth

• Mars

• Jupiter

• Neptune

What is the boundary of our solar system that houses billions of comets called?

• Kuiper Belt

• Oort Cloud

• Asteroid Belt

• Milky Way galaxy

Why do all the planets orbit the Sun in the same, counter-clockwise direction?

• Due to the influence of Earth's magnetic field

• Due to the rotation of the Milky Way galaxy

• Due to the Law of Conservation of Angular Momentum

• Due to the gravitational pull of the Moon

Which celestial object is the closest to the Sun?

• Mercury

• Venus

• Earth

• Mars

Which celestial object is the oldest?

• Earth

• The Universe

• The Milky Way galaxy

• The Solar System