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5 Written questions

5 Matching questions

  1. Galaxy
  2. Asteroid
  3. Equinox
  4. Light year
  5. Gravity
  1. a the force of attraction between two masses; a more massive object has greater pull on a less massive object; the closer the objects, the greater the pull
  2. b regions in outer space made up of billions of stars, gas, and dust clouds; they have different shapes - elliptical, spiral, irregular
  3. c a piece of rock, smaller than a planet, that orbits the Sun; many are found orbiting in a region between Mars and Jupiter
  4. d either of two days during the year when the Sun is directly above the equator; daylight and night are the same length
  5. e a unit of distance that astronomers use to measure distance to stars and galaxies in space; equal to the distance light travels in one year

5 Multiple choice questions

  1. a small slice of the lighted side of the Moon is facing Earth
  2. the circling of one object around another object; a year on Earth is based on 365 ΒΌ days for revolving around the Sun
  3. the appearance of the Moon that depends on how much of the sunlit side of the Moon faces Earth
  4. one-half of the lighted side of the Moon faces Earth
  5. a mass of frozen gases and rock particles that orbits the Sun

5 True/False questions

  1. Auroraillumination of the sky near the poles as a result of solar particles entering the ionosphere

          

  2. Eclipseeither of two days during the year when the Sun is directly above the equator; daylight and night are the same length

          

  3. Lunar eclipsewhen the Moon is directly between the Sun and Earth, blocking the Sun's light casting a shadow over a certain area on Earth

          

  4. Waxing phasesthe lighted side of the Moon gradually decreases

          

  5. Tidesdaily changes in the level of the surface levels of Earth's oceans due to the gravitational pull of the Moon and the Sun

          

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