Globe

• The Globe


  A small model of the Earth that represents continents, oceans and countries
• Latitudes and Longitudes


  Imaginary lines used to locate a place on the Earth
• Candove Smart Class Software an
• not be
• Terms


  • (Rese
  • o read about the moon.
  • an imaginary line joining the local time
  • two poles
  • an imaginary line that divides longitude
  • the Earth into two equal halves
  • known as hemispheres
  • Meantime the local time of Prime Meridian Ples
  • or 0 longitude
  • the imaginary lines parallel to
  • the Equator, running from west
  • to east
• Earth


  A unique planet that is spherical in shape but slightly bulging at the Equator and flattened at the poles
• Earth


  • Polar diameter is 12 km shorter than the equatorial diameter
  • Polar circumference is 90 km shorter than the equatorial circumference
• Globe


  A spherical representation of the Earth
• Equator


  An imaginary line that divides the Earth into two equal halves (hemispheres)
• North Pole


  The pole pointing towards the North Star
• South Pole


  The pole opposite to the North Pole
• Northern Hemisphere


  The part of the Earth above (north of) the Equator
• Southern Hemisphere


  The part of the Earth below (south of) the Equator
• Prime Meridian


  The "longitude passing through near London" and used as the reference for 0 longitude
• Standard Time


  The local time corresponding to the longitude of a place
• Historians believe that human beings first appeared on Earth

  About 1.5 million years ago
• Earliest humans


  • Food gatherers
  • Hunters
  • Nomads
  • Always in search of food and shelter
  • Wandered from place to place
  • Hunted animals
  • Gathered fruits, roots, seeds and nuts
• When there was shortage of animals or plants in one area

  They moved to another area in search of food
• Early humans


  • Considered it safer to move in groups rather than wander about all alone
  • A group generally consisted of a few men and women and children who stayed together with the elders
  • Led a primitive life
  • Remained without clothes during summers
  • Wore animal skins, leaves and the bark of trees to keep themselves safe from severe cold in winter
  • Spent their nights on trees or in rock shelters and caves, that protected them from wild animals when asleep
• We come to know a lot about the earliest human beings from their evidences in the form of stone tools and weapons
• During the prehistoric period, human beings


  • Defended themselves against all types of wild animals using stones by attaching them to handles of bones or wood
  • Made weapons in the form of spears or arrows
  • Hunted animals with these weapons
• The stones were used to

  • Hunt animals
  • Remove the skin of animals, cut meat and bones
  • Cut trees and clear forests
• The Earth's crust consists of two types of rock - sedimentary rocks (formed by the accumulation of materials) and metamorphic rocks (formed when existing rocks are changed due to heat or pressure).