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Glossary unit1

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Vocabulary Unit 1

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Glossary unit1

  1. 1. Artificial satellite  (noun): an object made by man which orbits the Earth.
  2. 2.  (noun): the imaginary line round which a body (e.g. a planet) rotates. The Earth axis is tilted (inclined to one side) Axis
  3. 3. Galaxy  (noun): a large grouping of stars and their planets.
  4. 4. Milky Way  (noun): our galaxy, the one which contains the Sun, Earth, etc.
  5. 5. Orbit  (noun): the elliptical path of a smaller celestial body around a larger one.  (verb): the movement of a smaller celestial body around a larger one. (e.g. a planet revolves around a star, and a satellite around a planet.)
  6. 6. Planet / Satellite  (noun): a celestial body orbiting a star.  (noun) : natural body or a man-made object that orbits a planet.
  7. 7. Star  (noun): a huge ball of very hot burning gas, such as the Sun.
  8. 8. Solar System  (noun): the Sun and the celstial bodies that orbit it, planets and their satellites.
  9. 9.  (noun): the process of making maps . Cartography
  10. 10.  (noun): a location and navigation system based on satellite information. Global Positioning System (GPS)
  11. 11. Map.  (noun): a flat representation of the Earth’s surface.
  12. 12. Map projections.  (noun): ways that cartographers represent the Earth on a map. Remember: when cartographers try to flatten the Earth for a map projection, distortions in terms of shape, distance, direction, or land area are inevitable.
  13. 13. Scale.  (noun): the relationship between teh real size of a particular area of the Earth and its size on a map.
  14. 14. Coordinates.  (noun): numbers used to give the exact location of a persona or place on the Earth.
  15. 15. Meridian.  (noun): an imaginary line that divides the Earth’s surface from pole to pole.
  16. 16. Greenwich Meridian Prime Meridian.  (noun): The meridian, at 0º longitude, that is the reference point for all other meridians. It divides the Earth into the Western and Eastern Hemispheres.
  17. 17. Longitude.  (noun): the distance between a place on the Earth’s surface and the Greenwich or Prime Meridian.
  18. 18. Parallel.  (noun): an imaginary line that encircles the Earth horizontally.
  19. 19. Equator.  (noun): the imaginary line that encircles the Earth horizontally and divides it into the Northen and Southern Hemispheres. It is the parallel at 0º latitude.
  20. 20. Latitude.  (noun): the distance between a place on the Earth’s surface and the Equator.
  21. 21.  (noun): one of two equal halves of a planet. Hemisphere.

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