Study Jams: The Universe

How many moons are in our solar system?

• 178

• 145

• 105

• 95

Which of the following defines the universe?

• the whole solar system

• a group of planets

• the galaxy that includes the Sun

• all things that exist in space

Which list goes from smallest to largest?

• galaxy, universe, solar system

• solar system, galaxy, universe

• solar system, universe, galaxy

• universe, galaxy, solar system

What is the name of the galaxy that includes Earth?

• The Milky Star

• The White Dwarf

• The Milky Way

• The Best Galaxy Ever

Which of these best defines a planet?

• a large body that does not give off light

• a bright, burning ball of gas

• a body that orbits the Moon

• a mass that defies gravity

Which of these is an important characteristic of a planet?

• It must be at least 92 million miles from the Sun.

• It must have at least 165 moons.

• It must be massive enough to clear objects from its orbit.

• It must have gravity.

What is a light year?

• a year in which the Sun gives off extra light rays

• the distance light travels in one year

• the distance of the Earth from the Sun

• the amount of time it takes all of the planets to orbit the Sun