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Comets Asteroids & Meteors

Comets Asteroids & Meteors. Astronomy Chapter 2.5 Pages 80-83. Comet. “Dirty snowballs” Chunks of ice and rock Very long and narrow elliptical orbits. Parts of a Comet. 1. Coma : gas and dust from the inner layer. 2. Nucleus : central part of a comet.

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Comets Asteroids & Meteors

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  1. Comets Asteroids & Meteors Astronomy Chapter 2.5 Pages 80-83

  2. Comet • “Dirty snowballs” • Chunks of ice and rock • Very long and narrow elliptical orbits

  3. Parts of a Comet 1. Coma: gas and dust from the inner layer 2. Nucleus: central part of a comet 3. Tail: gas and dust trail of comet.

  4. Comet • Sun melts the ice and dust into gas and forms the coma. • Solar wind pushes the gas and dust away from the sun forming the tail Halley’s comet every 76 Years (2062)

  5. Asteroids • Terrestrial objects too small and numerous to be planets. • Over 10,000 • Ceres is a dwarf planet • An asteroid might have made the dinosaurs extinct.

  6. Asteroids • Asteroid Belt between Mars and Jupiter.

  7. Meteoroid • A chunk of rock drifting in space • Usually from a comet or asteroid.

  8. Meteor • Meteoroid enters Earth’s atmosphere and burns up due to friction leaving a streak of light. • Shooting Star

  9. Meteorite • Meteor that is too big to burn up • Hits Earth’s surface • Usually made of iron and nickel.

  10. What to Work On • Read textbook pages 80-83 • Answer Section Review questions 1-4 on page 83. DUE: Friday, April 13th

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