Rocky Planets
  • 1. Our solar system is made up of mostly _____ _____.
A) comets
B) empty space
C) planets
D) asteroids
  • 2. Which of these is NOT part of our solar system?
A) rocky planets
B) watery planets
C) gas giant planets
D) undiscovered planets
  • 3. How many categories of planets are there?
A) 2
B) 4
C) 3
D) 8
  • 4. These planets are all part of the _____ category: Mercury, Venus, Earth, and Mars.
A) Watery
B) Undiscovered
C) Gas Giant
D) Rocky
  • 5. Which planet is closest to the sun?
A) Venus
B) Mercury
C) Earth
D) Mars
  • 6. How many days does it take to revolve around the sun?
A) 365
B) 50
C) 58
D) 88
  • 7. Which planet has the greatest temperature difference from daytime to nighttime?
A) Venus
B) Mercury
C) Earth
D) Mars
  • 8. Which planet is very similar to Earth?
A) Mars
B) Venus
C) Mercury
D) Earth
  • 9. Venus rotates in the ________ direction as Earth.
A) alike
B) fast
C) opposite
D) same
  • 10. The surface of Venus has ______ ______.
A) lakes and rivers
B) smooth ridges
C) volcanic ridges
D) tall, sharp cliffs
  • 11. Which planet is third from the sun?
A) Mercury
B) Earth
C) Mars
D) Venus
  • 12. Earth is the only planet known to have ______.
A) volcanoes
B) sunlight
C) life
D) cliffs
  • 13. Because Earth has so much water it is known as the ____ planet.
A) green
B) blue
C) smallest
D) watery
  • 14. Tectonic activity is the Earth's ______.
A) plates constantly in motion
B) temperature always changing
C) trees constantly changing color
D) water always evaporating
  • 15. Earth revolves around the sun in _____.
A) half a day
B) 365 1/4 days
C) 6 months
D) 24 hours
  • 16. The Earth's _____ causes changes in seasons.
A) rotation
B) tilt
C) water cycle
D) tectonic activity
  • 17. What planet is known as the red planet?
A) Earth
B) Mercury
C) Mars
D) Venus
  • 18. How many moons does Mars have?
A) 4
B) 8
C) 2
D) 3
  • 19. What does the wind on Mars cause?
A) hurricanes
B) seasons
C) dust storms
D) rocks
  • 20. Even though no water has been found on Mars, scientists have discovered _____.
A) constant wind
B) ice caps at the poles
C) polar bears and penguins
D) iron
  • 21. What is the difference between the two hemispheres on Mars?
A) one is a flat, plains area; one has craters and highlands
B) one has life; one does not have life
C) one gets rain; one does not get rain
D) one rotates faster than the other
  • 22. Mars' rate of rotation is _____ Earth's.
A) similar to
B) warmer than
C) opposite of
D) colder than
  • 23. Our group of rocky planets are ______.
A) moving away from the sun.
B) the farthest from the sun
C) moving closer to the sun.
D) closest to the sun.
  • 24. The fastest orbiting planet is _____.
A) Venus
B) Mercury
C) Mars
D) Earth
  • 25. Which planet do we live on?
A) Earth
B) Mercury
C) Venus
D) Mars
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