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8th Grade Ch. 2 Sec. 4 Using Space Science on earth
 

8th Grade Ch. 2 Sec. 4 Using Space Science on earth

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    8th Grade Ch. 2 Sec. 4 Using Space Science on earth 8th Grade Ch. 2 Sec. 4 Using Space Science on earth Presentation Transcript

    • Ch. 2 Sec. 4 Using Space Science on Earth
    • Space is nearly a vacuum.
      • place that’s empty of all matter
      • (no solids, liquids, or gases)
      • NOTHING!
    • Extreme temps. in space
      • Temperatures in space can range from the extremely cold, 100’s of degrees below freezing , to many hundreds of degrees above – especially if a spacecraft ventures close to the Sun.
    • microgravity
      • feeling of weightlessness
      • falling thru. space w/ spacecraft
      • inertia keeps them moving forward
    • space spinoffs
      • have uses on Earth
      • originally designed for use in space
      Space Shuttle spinoffs ESA Space Spinoffs Top 10 Space Spinoffs
    • stays over same place on Earth all the time
    • remote sensing
      • collection of info w/o being in direct contact
      • Real World: NASA and a Dinosaur Named Dakota
      http://spaceplace.nasa.gov/en/educators/earth_from_space.pdf
    • Space spinoffs ear thermometer joystick invisible braces pacemaker battery satellite dish
    • TOP 10 NASA SPACE SPINOFFS
    • Time to review
    • Name 3 ways that conditions in space are different from conditions on Earth.
      • 3 ways that conditions in space are different from conditions on Earth are:
      • space is a near vacuum
      • major temperature extremes
      • microgravity
    • How have engineers designed spacecraft to operate in the special conditions of space?
      • Engineers have designed spacecraft to be well insulated and airtight to operate in the special conditions of space.
    • What is a space spinoff?
      • A space spinoff is an item that was originally designed for use in space but has uses on Earth .
    • How has medical science benefited from the space program?
      • Medical science has benefited from the space program from the creation of medical spinoffs, such as lasers to clean clogged arteries, pacemakers that use longer lasting batteries, and computer-aided imaging techniques.
    • Name three uses of satellites that affect everyday life.
      • 3 uses of satellites that affect everyday life are:
      • transmitting television signals
      • gathering weather data
      • relaying computer data
    • What advantage would there be to placing a satellite in geostationary orbit?
      • One advantage to placing a satellite in geostationary orbit would be because a geostationary satellite stays in the same place over Earth, signals to and from the satellite can always be directed to and from the same location in the sky.
    • How could a scientist use satellites to determine whether a rain forest was becoming smaller over time?
      • A scientist could use satellites to determine whether a rain forest was becoming smaller over time by examining satellite images of an area taken over a period of years to find out whether the area covered by rain forest is changing.
    • Analyzing three decades of satellite imagery, researchers found that 19.8 million acres of Papua New Guinea’s tropical rain forest was lost between 1972 and 2002.
    • Make Keynote presentation about space spinoffs OR uses of satellites using clip art & Internet
    • 4 slides SLIDE 1 - TITLE SLIDE SLIDES 2-4 6 pictures- 2 pics per slide 3 facts in sentence format- 1 FACT PER SLIDE