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EARTH

EARTH. HOME SWEET HOME. 3 rd Planet from the Sun. HOME SWEET HOME. The largest of the 4 rocky planets 12756km. HOME SWEET HOME. Hot dense core Mantle Thin rocky outer crust. HOME SWEET HOME. 149.6 million km away from Sun. HOME SWEET HOME. 365.26 days to orbit the Sun

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EARTH

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  1. EARTH

  2. HOME SWEET HOME • 3rd Planet from the Sun

  3. HOME SWEET HOME • The largest of the 4 rocky planets • 12756km

  4. HOME SWEET HOME • Hot dense core • Mantle • Thin rocky outer crust

  5. HOME SWEET HOME • 149.6 million km away from Sun

  6. HOME SWEET HOME • 365.26 days to orbit the Sun • Orbits at an average speed of 108000km/s

  7. HOME SWEET HOME • 23.93 hours to rotate on its axis • 23.5° tilt on axis

  8. HOME SWEET HOME • Acceleration due to gravity is 9.81m/s2

  9. HOME SWEET HOME • Not a perfect sphere

  10. HOME SWEET HOME • Water

  11. STUDYING THE EARTH • Thales proposed first model of a Geocentric universe

  12. STUDYING THE EARTH • 1735 • Team of scientists attempted to determine size of Earth • Triangulation

  13. STUDYING THE EARTH • 1774 • Nevil Maskelyne • Schiehallion Experiment • Attempted to determine mass of Earth

  14. STUDYING THE EARTH • 1797 • Henry Cavendish determines weight of Earth

  15. STUDYING THE EARTH • 1944 • Arthur Holmes • Theory of Continental Drift

  16. STUDYING THE EARTH • 1946 first photos of Earth from space

  17. STUDYING THE EARTH • 1953 • Clair Patterson • Mass spectrography • Uranium and lead • Age of Earth

  18. STUDYING THE EARTH • Space Race • Apollo 8 (1968) • RADARSAT-1 • 1995

  19. Life on Earth • Greenhouse gases • Water stabilizes temp

  20. SOURCES • http://homepage.mac.com/dvhscience/SpaceAcademy/Projects/before2004/moon_triangulate/fourmilabimage.jpg • http://www.aerospaceweb.org/question/astronomy/solar-system/solar-system.jpg • http://www.spacetoday.org/images/SolSys/Earth/EarthBlueMarbleWestTerra.jpg • http://www.bnsc.gov.uk/assets/channels/education/ae/Earth_interior.gif • http://www.badastronomy.com/pix/bablog/2006/earthsun.jpg • http://www.windows.ucar.edu/the_universe/uts/seasons_orbit.5x7.jpg • http://cache.eb.com/eb/image?id=66792&rendTypeId=4 • http://www-b.jpl.nasa.gov/images/earth/bulge_post1997_browse.jpg • http://worthyourweight.files.wordpress.com/2007/11/flat-earth.jpg • http://www.people.cornell.edu/pages/nrw22/astro/images/triangulation.jpg • http://cache.eb.com/eb/image?id=64197&rendTypeId=4 • http://upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Schiehallion_NW_ridge.jpg/300px-Schiehallion_NW_ridge.jpg • http://pubs.usgs.gov/gip/dynamic/graphics/Fig2-5globes.gif • http://content.answers.com/main/content/wp/en-commons/thumb/c/c3/180px-Cavendish-lab.jpg • http://www.hcc.mnscu.edu/chem/abomb/Mass_Spec_of_U.jpg • http://www.bethel.k12.ct.us/bhs/information/science/wcmaindiagram2.jpg • http://www.airspacemag.com/space-exploration/FEATURE-FirstPhoto.html# • http://solarsystem.nasa.gov/multimedia/gallery/GPN-2001-000009.jpg • http://www.primidi.com/images/earth_with_and_without_life.jpg • http://www.koshlandscience.org/exhibitgcc/images/causes02.jpg

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