Chapter 3 and 4 and 5 summary Quiz -- Prep for Test on Thursday.

• 1) The moon is a natural satellite that revolves around earth.
  True   False
• 2) In what year did man first walk on the moon?
  Answer:
• 3) The earth is approximately 4.6 million years old
  True   False
• 4) The Big Bang Theory attempts to explain the formation of our solar
  system.
  True   False
• 5) The H-R graph compares ____________ of different stars
  

  brightness and distance
  color and distance
  brightness and temperature
  brightness and composition
• 6) The Milky Way Galaxy is a type of __________________ galaxy
  

  spiral
  irregular
  elliptical
  circular
• 7) Two elements that seem to be essential to the formation of stars
  are:
  

  hydrogen and oxygen
  hydrogen and helium
  hydrogen and sodium
  oxygen and water
• 8) The 'Big Dipper' can be classified as a circumpolar constellation
  True   False
• 9) An astronimical unit is equal to the distance of _______________
  

  Mars to Earth
  Earth to Pluto
  Earth to the Sun
  Mercury to the Sun
• 10) Sunspots are ______________ areas of the sun.
  

  cooler
  warmer
• 11) The layer of the sun that emits the most light is the
  ________________
  

  corona
  photosphere
  stratosphere
  troposphere
• 12) Our sun is a _____________ star.
  

  red
  blue
  orange
  yellow
• 13) Within our universe, there are swirling clouds of gas, ice and dust
  which are called __________________, and may eventually form into a
  new star.
  Answer:
• 14) The old and incorrect geocentric model of the universe stated that
  the earth was the center of the universe.
  True   False
• 15) Our solar system consists of the 9 planets (yes, we'll include
  Pluto), many moons, asteroids, and too many stars to actually count.
  

  true
  false
• 16) Mars and Earth both experience seasons because both planets
  _____________
  

  have at least one moon
  rotate on a tilted axis
  have an atmosphere
  are inner planets