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The Solar System

The Solar System. The sun and solar system formed from a nebula Planets are dust and gas that never condensed as part of the sun, yet didn’t become big enough to be stars Lighter material (gases) formed the outer planets, while heavier material formed the inner planets.

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The Solar System

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  1. The Solar System

  2. The sun and solar system formed from a nebula Planets are dust and gas that never condensed as part of the sun, yet didn’t become big enough to be stars Lighter material (gases) formed the outer planets, while heavier material formed the inner planets Formation of the Solar System

  3. The Inner Planets • Mercury, Venus, Earth and Mars • Terrestrial planets (hard, rocky surface) • More dense than outer planets

  4. Mercury • Smaller than some moons • Almost no atmosphere • Heavily cratered like the Moon

  5. Venus • Similar in size to Earth • Very volcanic • Has a strong “greenhouse effect” with temperatures of 482°C (900°F) • Has retrograde rotation

  6. Earth • Only planet known to have life • Liquid Water!

  7. Mars • Known as the “Red Planet” • Evidence of liquid water in the past • Has the largest volcano in the solar system

  8. Asteroid Belt • Region between Mars and Jupiter • Separates the Inner terrestrial planets from the outer gas planets • Range in size from 950 km in diameter to grains of dust

  9. Jovian Planets (Gas Giants) • Jupiter, Saturn, Uranus, Neptune • Composed mostly (or entirely) of gas

  10. Jupiter • Largest in the solar system • Has at least 64 moons • The Great Red Spot is a giant storm

  11. Saturn • Known for its rings that are made of ice and rock • Has at least 40 moons

  12. Uranus • Blue-green color from atmosphere of methane • Rotates on its side • Has retrograde rotation

  13. Neptune • Great Dark Spot is a storm • Orbit can be farther from sun than Pluto

  14. Pluto • Pluto and its moon Charon orbit each other • not visited by spacecraft • Smaller than some moons

  15. Complete the following with complete sentences: • Pg 648: 1-5, 8 • Pg 653: 3, 6 • Pg 659: 3, 5, 6 • Pg 664: 5

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