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Welcome To…..

Welcome To….. . The Trick is to Pick!. THE SUN. Sun vs. Earth. Answers A. 109 times smaller B. The Earth Stress Ball Over 1 million Earths would fit inside the Sun The average distance from the earth to the sun is called an Astronomical Unit (AU)

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Welcome To…..

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  1. Welcome To….. The Trick is to Pick!

  2. THE SUN

  3. Sun vs. Earth • Answers • A. 109 times smaller • B. The Earth Stress Ball Over 1 million Earths would fit inside the Sun The average distance from the earth to the sun is called an Astronomical Unit (AU) • 1 AU = 150,000,000 kilometers or 93 million miles

  4. THE SOLAR SYSTEM

  5. The Solar System • Answers • A. Scotch Tape Roll • B. a grain of salt • C. a microscopic bacteria 8 planets  Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

  6. The Solar Neighborhood • A grouping of stars “close” to each other • The region of the Galaxy within 32.6 light-years of the sun • Here stars move generally with the sun in its orbit around the center of the galaxy

  7. The Solar Neighborhood

  8. The Solar Neighborhood • Answer • A. a grain of salt

  9. The Milky Way

  10. The Milky Way Galaxy • Answers • A. Nickel It takes 250 million years for the Sun to complete one orbit We are located at the edge of a spiral arm (30,000 light years away from center)

  11. The Local Group • Contains 3 large spiral galaxies --> • Milky Way, Andromeda, and Triangulum • Also includes a few dozen dwarf galaxies • Gravitationally bound together, orbiting around a common center of mass • 6.5 million light years in diameter

  12. The Local Group • Answer • A. The big Globe

  13. Local Supercluster • A cluster of many groups of galaxies • Gravitationally bound together • However, local supercluster is getting bigger with time • It has a flattened shape

  14. The Local Super Cluster

  15. Local Supercluster • Answers • A. a small globe • B. a quarter

  16. The Entire Universe • Observable Universe is 156 billion light years in diameter • Around 100 billion galaxies • Big and expanding

  17. The Entire Universe • Answers • A. A dime • B. A grain of salt

  18. Sun Vs. Pluto • A. 669 times • B. Nickle

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