8th Grade Ch. 2 Sec. 4 Using Space Science on earth
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Transcript of 8th Grade Ch. 2 Sec. 4 Using Space Science on earth
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Ch. 2 Sec. 4 Using Space Science on Earth
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Space is nearly a vacuum.
• place that’s empty of all matter
(no solids, liquids, or gases)
NOTHING!
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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.
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microgravity• feeling of
weightlessness• falling thru.
space w/ spacecraft
• inertia keeps them moving forward
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space spinoffs• have uses on Earth• originally designed for use in space
Space Shuttle spinoffsESA Space Spinoffs
Top 10 Space Spinoffs
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stays over same place on Earth all the time
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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
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Space spinoffs
ear thermometer
joystick
invisible braces
pacemaker battery
satellite dish
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TOP 10 NASA SPACE SPINOFFS
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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:
2. space is a near vacuum3. major temperature extremes4. microgravity
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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.
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What is a space spinoff?
• A space spinoff is an item that was originally designed for use in space but has uses on Earth.
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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.
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Name three uses of satellites that affect everyday life.
• 3 uses of satellites that affect everyday life are:
2. transmitting television signals3. gathering weather data4. relaying computer data
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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.
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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.
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Analyzing three decades of satellite imagery, researchers found that 19.8 million acres of Papua New Guinea’s tropical rain forestwas lost between 1972 and 2002.
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Make Keynote presentation about space spinoffs OR uses of satellites using clip art &
Internet
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4 slidesSLIDE 1 - TITLE SLIDE
SLIDES 2-46 pictures- 2 pics per slide
3 facts in sentence format- 1 FACT PER SLIDE