BACKGROUND KNOWLEDGE REQUIRED

  • Basic understanding of the movement of the earth and planets within the solar system, including the concepts of equinox, solstice, full moon, new moon, first and last quarter.
  • Thye concepts of gravity and centrifugal force.
  • Basic geography of the earth's surface, and the position of the oceans and continents.

Seashore index


© 1997, Derek Keats
01 February 2001