Tides

  • Tides occur because of the pull of gravity of the Moon and the Sun on the Earth's oceans. Because the Moon is closer to the Earth, it has the greatest effect on our tides. There are approximately 2 high tides and 2 low tides every 24 hours.
  • Spring tides (often called 'king tides' by fishermen) occur at New Moon and Full Moon when the Sun, the Moon and the Earth are in line. This forms extremely high high-tides and extremely low low-tides.
  • Neap tides occur at First Quarter and Last Quarter, when the Sun, the Earth and the Moon are at right angles. This forms quite low high-tides and quite high low-tides.

Tides Diagram


Eclipses

Solar Eclipse Diagram

Lunar Eclipse Diagram


Day and Night


Seasons


Seasons Diagram



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