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Development of a Habitable Planet

Development of a Habitable Planet. Infrared Search for Origins of Life. Explore the following interactive link Your goal is to focus on “Star Formation” and “Planetary Systems”. http://coolcosmos.ipac.caltech.edu/image_galleries/collection/sirtf_flash/. Research with a partner.

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Development of a Habitable Planet

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  1. Development of a Habitable Planet

  2. Infrared Search for Origins of Life Explore the following interactive link Your goal is to focus on “Star Formation” and “Planetary Systems” http://coolcosmos.ipac.caltech.edu/image_galleries/collection/sirtf_flash/

  3. Research with a partner INDEX CARD: EVENT You must be able to answer: The conditions prior to the event The event itself: What happened? What caused it? When and how did it happen? You are given an index card with a name of an event. You will conduct your own research on the event. You will discuss your findings with the class.

  4. The Elements: Forged in Stars While you are watching the following videos consider the questions below. Answer these questions on your video research sheet. • Where are elements heavier than Hydrogen up to Iron form? • What extreme situation produces all the elements heavier than iron? • PREDICT: Why do you think the elements heavier than iron require this extreme situation? http://www.teachersdomain.org/asset/ess05_vid_fusion/

  5. The Origin of the Moon • Describe the current theory of the formation of the Moon. • Apollo 15 astronauts discovered a rock that looked like anorthocite. What significance did this rock play in developing the Impact Theory? • What role has the Moon played in the history of the Earth? http://www.teachersdomain.org/asset/ess05_vid_moon/

  6. Jupiter: Earth’s Shield • Explain why is Jupiter so important to Earth? • If you were a planetary astronomer what would your hypothesis be? If…then… • Do you think that there are other habitable planets in the universe? • What about habitable moons? http://www.teachersdomain.org/asset/ess05_vid_jupitersrole/

  7. Global Warming: The Physics of the Greenhouse Effect http://www.teachersdomain.org/asset/phy03_vid_greenhouse2/ Explain why the greenhouse effect is beneficial to Earth. In your response address radiant energy, reradiated energy (heat/infrared energy), and average temperature equilibrium. Recall Earth’s average temperature. Relate how burning fossil fuels can change the average temperature equilibrium? How does Earth’s atmosphere impact life?

  8. Ingredients for Life: Water http://www.teachersdomain.org/asset/ess05_vid_water/ List signs that Mars was once a wet place. What molecule is needed for life? Draw a water molecule. Write its chemical formula.

  9. Life Before Oxygen Video • What organism formed the first oxygen on Earth? • What process did this organism undergo to form the oxygen? • Do these organism exist today? If so, where? http://www.teachersdomain.org/asset/tdc02_vid_stetteroxy/

  10. Deep Time Interactive • When was the birth of our solar system? • How old are the oldest known rocks on Earth? • Where would you find these rocks? • In what era was the first evidence of Life? • How long ago were the first soft body animals? http://www.pbs.org/wgbh/evolution/change/deeptime/index.html

  11. Wall of Time Image • Find your event on the Wall of Time. • Note the following: • The conditions prior to the event • The event itself: What happened ? What caused it? When and how did it happen? • The conditions after the event and its impact on the future of Earth. http://www.teachersdomain.org/ext/ess05_img_walloftime/index.html

  12. Life’s Little Essential: Liquid Water Article • Based on the Background essay: What are the three necessities for life? • Water is said to be a good solvent, Why is this important to life? • How does the liquid range of water compare to other liquids? • PREDICT: Why do you think the liquid range of water maters in the formation of life? http://www.pbs.org/wgbh/nova/evolution/liquid-of-life.html

  13. Mars Dead or Alive: Mars Up Close Video Link: http://www.pbs.org/wgbh/nova/assets/swf/1/audio-gallery/audiogallery.swf?init_file=mars-up-close Grey hematite is typically found in places where there has been standing water or mineral hot springs, such as those in Yellowstone National Park in the United States. The mineral can precipitate out of water and collect in layers at the bottom of a lake, spring, or other standing water. Hematite can also occur without water, however, usually as the result of volcanic activity. Do you think that it is possible for life to have existed on Mars? Why or Why not?

  14. Caves: Extreme Conditions for Life Video • What is an extremophile? • What do the extreme life forms in Cane Cave survive on? • What do these extreme life forms suggest about where life may have originated on Earth? • How does this help scientists searching for a Habitable planet find the conditions that may harbor life? Video Link: http://www.teachersdomain.org/asset/ess05_vid_lifecondtn/

  15. How to Find a Habitable Planet Follow the link to read the article: http://www.cosmosmagazine.com/reviews/3390/how-find-a-habitable-planet • As technology advances, we're discovering more and more extrasolar planets, but how do we know which might host life? • Is water the key to habitability, or is it having an atmosphere? • According to James Kasting, the answer is both - and a lot more.

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