Grade 6 - Space Quiz

a push, pull, or other factor that can make an object change speed, shape, or direction

• force

• gravity

• orbit

• revolution

the term used to describe all the planets and their moons, asteroids, dust, gases, and other objects that orbit the Sun

• Universe

• Solar System

• Galaxy

• the Milky Way Galaxy

1. Which of the following is an example of a gas giant planet?

• Earth

• Jupiter

• Mars

• Venus

1. What is one difference between comets and asteroids?

• Comets are made of ice only, and asteroids are not.

• All comets go around the Sun in circles, and asteroids do not.

• Asteroids are farther from the Sun than most comets are.

• Comets form a tail when they get close to the Sun, and asteroids do not.

1. Which of the following produces its own light?

• Earth

• the Sun

• the Moon

• Jupiter

Galaxies are larger than the Universe.

• True

• False

A galaxy can have upwards of 400 billion solar systems.

• True

• False

A solar system has 100 billion planets in it.

• True

• False

The universe has around 2 trillion galaxies.

• True

• False

There could be 3.2 trillion planets in our galaxy.

• True

• False