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