The Solar System

Apr 15, 2016

Read each question and choose the best answer.
1. Which tool is made of two telescopes that are joined together as a unit?
  1. satellite
  2. space probe
  3. star chart
  4. binoculars
2. How many times wider than the Earth is the Sun?
  1. about 10,000
  2. about 10
  3. about 100
  4. about 1,000
3. What words describe the shape of a planet’s orbit?
  1. slightly curved
  2. slightly oval
  3. perfectly circle
  4. straight line
4. Which planet can be seen in the night sky only with a telescope?
  1. Mercury
  2. Mars
  3. Neptune
  4. Venus
5. Which of these is a piece of rock in orbit around the Sun?
  1. a star
  2. an asteroid
  3. an instrument
  4. a lens
6. Which tool is used to study other planets and stars?
  1. a microscope
  2. a mirror
  3. a lens
  4. a telescope
7. Why do people on Earth always see the same side of the moon?
  1. Earth does not rotate around its axis.
  2. Earth rotates and orbits the Moon in the same amount of time.
  3. The moon rotates and orbits the Earth in the same amount of time.
  4. The Moon does not rotate around its axis.
8. Which planet is closest to the Sun?
  1. Saturn
  2. Uranus
  3. Mars
  4. Jupiter
9. Which planet is the largest planet?
  1. Jupiter
  2. Neptune
  3. Saturn
  4. Earth
10. How much of the Moon is lit by the Sun at any one time?
  1. one-fourth of it
  2. half of it
  3. three-fourths of it
  4. all of it
11. What object is at the center of the solar system?
  1. Earth
  2. Pluto
  3. the Moon
  4. the Sun

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