UNIT 3
Solar System
LESSON 13
Solar System Unit Test
1. The solar system consists of the sun, ______, and other celestial bodies.
a) moons
b) planets
c) comets
d) all of the above
2. The largest planet in the solar system is ______.
a) Earth
b) Jupiter
c) Mars
d) Saturn
3. The smallest planet in the solar system is ______.
a) Mercury
b) Venus
c) Pluto
d) Uranus
4. The inner planets in the solar system are ______.
a) Mercury, Venus, Earth, Mars
b) Jupiter, Saturn, Uranus, Neptune
c) Mercury, Venus, Earth, Neptune
d) Mars, Jupiter, Saturn, Uranus
5. The outer planets in the solar system are ______.
a) Mercury, Venus, Earth, Mars
b) Jupiter, Saturn, Uranus, Neptune
c) Mercury, Venus, Earth, Neptune
d) Mars, Jupiter, Saturn, Uranus
6. The planet known for having a ring system is ______.
a) Earth
b) Mars
c) Saturn
d) Uranus
7. The planet that is often referred to as the "red planet" is ______.
a) Earth
b) Mars
c) Saturn
d) Uranus
8. The sun is located at the center of the ______.
a) asteroid belt
b) galaxy
c) Milky Way
d) solar system
9. ______ is the only planet known to support life.
a) Earth
b) Jupiter
c) Mars
d) Saturn
10. ______ is the hottest planet in the solar system.
a) Earth
b) Jupiter
c) Mars
d) Venus
11. The asteroid belt is found between the orbits of ______ and ______.
a) Earth and Mars
b) Jupiter and Saturn
c) Mars and Jupiter
d) Saturn and Uranus
12. ______ is the largest moon in the solar system.
a) Europa
b) Ganymede
c) Io
d) Titan
13. ______ is the only dwarf planet recognized by the International Astronomical Union.
a) Ceres
b) Pluto
c) Eris
d) Haumea
14. A ______ is a small icy body that orbits the sun and releases gas or dust.
a) comet
b) meteor
c) moon
d) planet
15. The solar system is located in the ______ arm of the Milky Way Galaxy.
a) Andromeda
b) Orion
c) Perseus
d) Sagittarius
16. The ______ is the boundary of the solar system where the sun's influence ends.
a) asteroid belt
b) Kuiper Belt
c) Oort Cloud
d) Pluto
17. ______ is the closest star to our solar system.
a) Alpha Centauri
b) Betelgeuse
c) Sirius
d) Vega
18. The ______ is an area of space where there is no gravity.
a) asteroid belt
b) black hole
c) galaxy
d) vacuum
19. The ______ is the force that holds the solar system together.
a) gravity
b) magnetism
c) radiation
d) solar wind
20. ______ is the process by which energy is produced in the sun.
a) Fusion
b) Fission
c) Supernova
d) Solar flare
1. The solar system consists of the sun, ______, and other celestial bodies.
a) moons
b) planets
c) comets
d) all of the above
2. The largest planet in the solar system is ______.
a) Earth
b) Jupiter
c) Mars
d) Saturn
3. The smallest planet in the solar system is ______.
a) Mercury
b) Venus
c) Pluto
d) Uranus
4. The inner planets in the solar system are ______.
a) Mercury, Venus, Earth, Mars
b) Jupiter, Saturn, Uranus, Neptune
c) Mercury, Venus, Earth, Neptune
d) Mars, Jupiter, Saturn, Uranus
5. The outer planets in the solar system are ______.
a) Mercury, Venus, Earth, Mars
b) Jupiter, Saturn, Uranus, Neptune
c) Mercury, Venus, Earth, Neptune
d) Mars, Jupiter, Saturn, Uranus
6. The planet known for having a ring system is ______.
a) Earth
b) Mars
c) Saturn
d) Uranus
7. The planet that is often referred to as the "red planet" is ______.
a) Earth
b) Mars
c) Saturn
d) Uranus
8. The sun is located at the center of the ______.
a) asteroid belt
b) galaxy
c) Milky Way
d) solar system
9. ______ is the only planet known to support life.
a) Earth
b) Jupiter
c) Mars
d) Saturn
10. ______ is the hottest planet in the solar system.
a) Earth
b) Jupiter
c) Mars
d) Venus
11. The asteroid belt is found between the orbits of ______ and ______.
a) Earth and Mars
b) Jupiter and Saturn
c) Mars and Jupiter
d) Saturn and Uranus
12. ______ is the largest moon in the solar system.
a) Europa
b) Ganymede
c) Io
d) Titan
13. ______ is the only dwarf planet recognized by the International Astronomical Union.
a) Ceres
b) Pluto
c) Eris
d) Haumea
14. A ______ is a small icy body that orbits the sun and releases gas or dust.
a) comet
b) meteor
c) moon
d) planet
15. The solar system is located in the ______ arm of the Milky Way Galaxy.
a) Andromeda
b) Orion
c) Perseus
d) Sagittarius
16. The ______ is the boundary of the solar system where the sun's influence ends.
a) asteroid belt
b) Kuiper Belt
c) Oort Cloud
d) Pluto
17. ______ is the closest star to our solar system.
a) Alpha Centauri
b) Betelgeuse
c) Sirius
d) Vega
18. The ______ is an area of space where there is no gravity.
a) asteroid belt
b) black hole
c) galaxy
d) vacuum
19. The ______ is the force that holds the solar system together.
a) gravity
b) magnetism
c) radiation
d) solar wind
20. ______ is the process by which energy is produced in the sun.
a) Fusion
b) Fission
c) Supernova
d) Solar flare
1. d) all of the above
2. b) Jupiter
3. a) Mercury
4. a) Mercury, Venus, Earth, Mars
5. b) Jupiter, Saturn, Uranus, Neptune
6. c) Saturn
7. b) Mars
8. d) solar system
9. a) Earth
10. d) Venus
11. c) Mars and Jupiter
12. b) Ganymede
13. b) Pluto
14. a) comet
15. d) Sagittarius
16. c) Oort Cloud
17. a) Alpha Centauri
18. b) black hole
19. a) gravity
20. a) Fusion