Chapter 28 and 29 Kara Floyd

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Across
  1. 3. What is another name for the first four planets; Mercury, Venus, Earth, and Mars.
  2. 6. what is the first stage that stars begin as a cloud of gas and dust.
  3. 7. What is another name for the last four planets; Jupiter, Saturn, Uranus, and Neptune.
  4. 8. Masses of water, methane, and ice.
  5. 9. Relatively small (sand-grain to boulder size) pieces of debris chipped off asteroids or comets.
Down
  1. 1. Groups of stars with names from antiquity.
  2. 2. What indicates a stars temperature.
  3. 4. Meteoroid that survives the trip through the atmosphere and reaches Earth's surface.
  4. 5. Small rocky bodies that orbit the Sun.
  5. 9. Meteoroid that strikes Earth's atmosphere that is often called a "falling star.”