SCI 151 Week 1 Basics of Astronomy Worksheet

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SCI 151 Week 1 Basics of Astronomy
Worksheet

Complete the outline
based on the readings for this week: Ch. 1-3 of The
Essential  


     Cosmic Perspective. Use complete sentences for all subpoints
listed.


  1. What is
    Earth's Sun in the solar system?

  2. What is our
    Milky Way galaxy including its size?? 

  3. What is the
    Big Bang?

  4. What is
    meant by the phase "looking out in the universe is looking back in
    time?"

  5. What is
    Earth's place in the solar system?

  6. How close
    are the nearest stars to the Sun as compared to the distance between the
    Sun and the Earth?

  7. What is the
    Sun's position in our Milky Way galaxy, and how is the Sun moving in the
    galaxy?

  8. How many
    stars are estimated to exist in this galaxy?

  9. How old is
    the Earth compared to the Universe itself?

  10. How fast
    does the Earth move around the Sun compared to spacecraft we have
    launched?

  11. How are
    other galaxies moving from our point of view on the Earth?

  12. What is
    Polaris, and what is its significance in the sky?

  13. How do solar
    and lunar eclipses occur?

  14. Why don't
    eclipses occur every month?

  15. What was the
    Copernican revolution?

  16. What
    observations did Galileo make that proved that planets go around the Sun?

  17. What laws
    tell about how the planets move around a star?

  18. What causes
    the seasons?

  19. Are objects
    in orbit of the Earth still under the influence of gravity?

  20. An object in
    orbit falls around the Earth. What do planets, comets, and asteroids fall
    around?



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