Social Science

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Across
  1. 4. A piece of land reclaimed from the sea or lake.
  2. 8. The 5th century Indian Astronomer and Mathematician, believed in the round shape of the earth.
  3. 9. The position when the earth is closest to the Sun.
  4. 10. The longest line of Latitude
  5. 11. An annual cycle where the seasons repeat year after year.
Down
  1. 1. The shape of the earth.
  2. 2. The mountains which are subjected to weathering and erosion for a long period of time.
  3. 3. The young fold mountains found in North America.
  4. 5. The Greek philosopher who calculated the circumference of the Earth.
  5. 6. The layer below the crust which is partially molten.
  6. 7. The place where IST passes through
  7. 10. The time when the sun crosses the plane of the earth's equator making night and day of equal length.