10 questions
Earth is one of .... planets that orbit the sun, which is a star.
five
eight
seven
ten
A ..... is a large celestial body that is composed of gas and emits light.
planet
galaxy
star
moon
A ..... is a large collection of stars, gas, and dust
moon
star
planet
galaxy
The ....... is space and all the matter and energy in it.
universe
moons only
starts only
planets only
A ...... is a spherical body that orbits the sun.
star
planet
galaxy
solar system
All these planets are terrestrial planets except .....
Mercury
Venus
Mars
Jupiter
The four planets that orbit farthest from the sun are called gas giant planets. They are
Jupiter, Saturn, Uranus, and Venus
Jupiter, Saturn, Uranus, and Neptune.
Jupiter, Saturn, Earth, and Mars
Mars, Saturn, Uranus, and Neptune.
A ....... is the distance that light travels through space in one year.
Meter
Year
light year
kilometer
Clusters and superclusters are areas throughout the universe, where galaxies are .....
densely concentrated.
less concentrated
at the same distance from each other
.......... are huge spherical areas where very little matter exists in the universe .
voids
clusters
superclusters