Chapter 12

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Author:
fourthgrade
ID:
148121
Filename:
Chapter 12
Updated:
2012-04-29 20:10:18
Tags:
Universe
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Description:
The Universe
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  1. first man to suggest that the earth revolved around the sun
    Copernicus
  2. involves the study of matter and engery in the structure of the universe
    astronomy
  3. an intrument that is used to obersve faraway objects
    telescope
  4. refracting-
    lenses
  5. reflecting-
    mirrors
  6. the earth revolves around the sun in how many days
    365 days and 366 in a leap year
  7. the moon orbits the earth in how many days
    28 days which is one month
  8. planets in order
    mercery,venus,earth,mars,jupiter,saturn,uranus,neptune
  9. what planet is in the milky way that we live on
    earth
  10. the basic types of galaxies are
    a spiral b elliptical c irregular
  11. a unit of length equal to the average distance between the earth and the sun (93 million miles)
    astromical unit (AU)
  12. the distance light travels in a vacuum in one earth year(6 trillion miles)
    light year
  13. order of the universe [smallest to largest]
    • a.stars
    • b.galaxy
    • c.cluster
    • d.supercluster
    • e.universe
  14. our planet is exactly in the right position for life to survive
    Anthropic Principle
  15. our planet exactly has the right balance for living things to survive.
    air, preditors vs. prey.
  16. the earth was desinged and positioned in just the right way for life to exist here.
    The Anthropic Principle
  17. -are alike because we are positioned "just right" for life to exist
    Goldilocks and the Anthropic Principle

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