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Todays Class.

9/10/2009

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 Aim:  We will begin to understand the way the earth and other planets formed, by discussing nebular and other theories


Standard 4-   Science Concepts

What we learned last year-----
Big bang theory- the universe started with a huge explosion.  Lots of dust-  A star exploded.

Nebular Hypothesis-  We might conclude that the Nebular Hypothesis is a part of the big bang theory-  It states that the earth and other planets were formed by a fast moving cloud of rotating dust.  We call the cloud a SOLAR NEBULA.

Nebula- Helium & Hydrogen -about 5 billion years ago began to contract and it had the shape of a flat disk with a (proto)sun in the center

Planets close to the proto sun were formed from metallic and rocky clumps of the dust..... those farther away were formed from fragments (small pieces of dust) and even ices.

Todays orbit resembles what is left over from the rotating cloud in the Nebula

















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  • Home
  • Earth Sci Labs
  • 7th Grade ON-LINE TEXTBOOK
  • 7th Grade
    • 7th grade Lab Reports
    • Current events
    • 7th 1- Scientific Theory
    • 7th Lanforms & Maps >
      • Mountain Project
      • Mineral/ Gem Project
    • 7th 3- Geology >
      • Weathering & Erosion
      • Fossil Project
      • Plate Tectonics
      • Earthquakes
      • Unit Test Review
    • 7th Unit 4 Atoms >
      • 7th Atom Brochure
  • Earth Science by topic
  • Submit Homework
  • 8th Grade Units 1-4
    • Unit 1 Models of the Earth >
      • Metric Review
      • Chapter1 Review
      • Chapter 2
      • Topographic Maps
    • Unit 2 Rocks & Minerals >
      • Minerals
      • Rocks
    • Unit 3 Dynamic Crust >
      • Earthquakes
      • Earthquakes & Interior
      • Hot Spots
      • Volcano
      • Dynamic Crust Review >
        • Practice Tests
    • Unit 4 Shaping the Earth's Surface >
      • Weathering
      • chemical weathering
      • Another Weathering video
      • Erosion Videos
      • Glaciers >
        • Glacier Pwr points
      • Changing Earth
      • Unit Review
  • 8th Grade Units 5-9
    • Unit 5 Earth History >
      • Archean History
      • Geological Eras
      • Geologic Sequence Project
      • Unit 5 Review
    • Unit 6 & 7 Climate & Meteorology >
      • 801 Vacation Work
      • Weather Tracking HW Lab
      • Meteorology info
      • Station Models
      • Wind
      • Storms
      • Weather & Climate Review Tests
    • Unit 8 Earth & Space
  • 801 Test Review
  • Ways to pass the regents
  • files
  • Other Important Links
  • New Page