Solar System_E.S. Space unit IV.

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a.obeso.III
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Solar System_E.S. Space unit IV.
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2015-10-21 11:45:20
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100 pt Multiple Choice Test Thursday 10.22.15
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  1. List the planets of the solar system order from closest to the Sun.
    • 1.Mercury
    • 2. Venus
    • 3. Earth
    • 4.Mars
    • 5. Jupiter
    • 6. Saturn
    • 7. Uranus
    • 8. Neptune
  2. Fill in the blanks. The inner planets lost their _____ because of the _____ . This left them with only _____ elements which made them very _____.
    The inner planets lost their light gases because of the Sun’s heat. This left them with only heavy elements which made them very dense.
  3. Fill in the blanks. The outer planets kept their _____ because they are _____. This allowed them to grow _____ and are _____.
    The outer planets kept their light gases because they are far from the Sun. This allowed them to grow huge and are less dense.
  4. Explain how inner planets were affected by the Sun during their formation.
    Because the inner planets are close to the Sun, their lighter gases (hydrogen & helium) were blown away by the heat
  5. Explain how outer planets were affected by the Sun during their formation.
    Because the outer planets are farther from the Sun, they were able to keep their light gases.
  6. What is a meteoroid?
    A small, rocky body that travels through space
  7. What is a meteor?
    A small, rocky body that burns up in Earth’s atmosphere. (“Shooting Star”)
  8. What is a meteorite?
    A small, rocky body that hits Earth.
  9. Describe the Oort Cloud
    Spherical cloud of dust and gas that lies beyond Pluto and contains comets.
  10. Describe the Kuiper Belt
    a flat ring of objects and debris just beyond Neptune's orbit.
  11. Describe Copernicus’s heliocentric model of the solar system.
    It is the idea that the planets orbit around the Sun.
  12. Describe the geocentric model of the solar system.
    It is the idea that the Sun & planets orbit around Earth.
  13. What does Kepler’s Law of Ellipses state?
    That each planet moves around the Sun in the shape of an oval (ellipse).
  14. What does Kepler’s Law of Equal Area state?
    That during its orbit, planets will move at different speeds; and that as the planet approaches the Sun, it speeds up.
  15. What does Kepler’s Law of Periods state?
    The longer the distance between a planet and the Sun, the longer it will take to revolve around the Sun.
  16. Explain the 3 steps in making a planet.
    Planetesimals collided to form protoplanets which combined to form planets.
  17. Define a Comet.
    A piece of rocky metallic materials held together by frozen gases.
  18. Define an Asteroid.
    An asteroid is a “flying mountain” that travels through space.
  19. What is the planet Mercury's uniqueness?
    It is the planet with the greatest temperature difference between the high temperature and the low temperature.
  20. What is the planet Venus’s uniqueness?
    It is the planet that is the hottest due to the heating caused by the runaway greenhouse effect.
  21. What is the planet Earth’s uniqueness?
    It is the planet that currently supports life.
  22. What is the planet Mars’s uniqueness?
    It is the planet known for its volcanoes.
  23. What is the planet Jupiter’s uniqueness?
    It is the planet with a giant, continuous storm known as the Great Red Spot.
  24. What is the planet Saturn’s uniqueness?
    It is the planet known for its spectacular rings.
  25. What is the planet Uranus’s uniqueness?
    It is the planet that rotates on its side.
  26. What is the planet Neptune’s uniqueness?
    It is the planet with the greatest wind speeds.
  27. What is the planet Pluto’s uniqueness?
    It is the planet that was demoted to a dwarf planet.

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