Ch. 3  Sec. 6  Is There Life Beyond Earth ?
Are we alone?
e xtra t errestrial life <ul><li>life other than that on Earth </li></ul>
 
 
 
favorable  conditions needed for life as we know it liquid  water suitable  temp. range & atmosphere sunlight or other ene...
Goldilocks condition <ul><li>temp. not too hot- not too cold </li></ul><ul><ul><ul><li>Earth = just right </li></ul></ul><...
Extreme Conditions- bacteria in hot springs show that range of conditions in which life can exist - much greater than scie...
covered by layer of ice-possibly liquid H 2 0 under possibly fossils in meteorite  Voyager & Galileo missions areas on Mar...
VIKING ORBITER VIEW OF MARS   surface of Mars looks like streambeds w/ crisscrossing paths of water – maybe Mars had flowi...
possible fossil bacteria in Mars meteorite
 
Scientists have discussed sending a robotic probe to search for life in the ocean below Europa’s icy crust.
So, is there life beyond Earth? ?????????? ??????????
2.  Extraterrestrial Paragraph <ul><li>Name of extraterrestrial </li></ul><ul><li>Where it comes from </li></ul><ul><li>Wh...
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8th Grade Ch. 3 Sec. 6 Is There Life Beyond Earth

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8th Grade Ch. 3 Sec. 6 Is There Life Beyond Earth

  1. 1. Ch. 3 Sec. 6 Is There Life Beyond Earth ?
  2. 2. Are we alone?
  3. 3. e xtra t errestrial life <ul><li>life other than that on Earth </li></ul>
  4. 7. favorable conditions needed for life as we know it liquid water suitable temp. range & atmosphere sunlight or other energy source
  5. 8. Goldilocks condition <ul><li>temp. not too hot- not too cold </li></ul><ul><ul><ul><li>Earth = just right </li></ul></ul></ul>
  6. 9. Extreme Conditions- bacteria in hot springs show that range of conditions in which life can exist - much greater than scientists once thought
  7. 10. covered by layer of ice-possibly liquid H 2 0 under possibly fossils in meteorite Voyager & Galileo missions areas on Mars looked like stream beds w/ paths of water- possible evidence may have had running water moon of Jupiter Viking missions- tested air & soil for signs of life Life on Europa Life on Mars
  8. 11. VIKING ORBITER VIEW OF MARS surface of Mars looks like streambeds w/ crisscrossing paths of water – maybe Mars had flowing water??
  9. 12. possible fossil bacteria in Mars meteorite
  10. 14. Scientists have discussed sending a robotic probe to search for life in the ocean below Europa’s icy crust.
  11. 15. So, is there life beyond Earth? ?????????? ??????????
  12. 16. 2. Extraterrestrial Paragraph <ul><li>Name of extraterrestrial </li></ul><ul><li>Where it comes from </li></ul><ul><li>What it eats </li></ul><ul><li>How it lives in its environment </li></ul>1. Make an extraterrestrial

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