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Name ______________________________ Class ___________________ Date __________________ Skills Worksheet Concept Review 19.3 Section: Formation of the Solar System 1. Describe how current models of the solar system differ from either Aristotle’s or Copernicus’s model. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ 2. Explain what the nebular hypothesis is. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ 3. Identify how long ago the original cloud of dust and gas started collapsing, according to the nebular hypothesis of the solar system. _________________________________________________________________ _________________________________________________________________ 4. Describe three types of bodies found in the solar system besides asteroids, dwarf planets, and planets. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ 5. Describe the current theory of how Earth’s moon was formed. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science Spectrum 3 The Solar System