equator - an imaginary line drawn around the earth equally distant from both poles; divides the northern part of earth from southern part, hemisphere - half of a spherical or roughly spherical body (such as a planet), axis - an imaginary line about which a body rotates; the axis of the earth is tilted 23 degrees, rotate - to move in a circle around an axis or center; the earth takes 24 hours to make one rotation around its axis, revolve - move in a circular orbit around another object; the orbit of the earth around the sun takes 365.25 days for one revolution, direct sunlight - when the hemisphere is tilted directly towards the sun, summer season - the hemisphere has direct sunlight; days are longer, indirect sunlight - occurs when the hemisphere is tilted away from the sun, winter season - the hemisphere has indirect sunlight; days are shorter, tides - the rise and fall of the ocean levels; result of the gravitational pull of the Sun and Moon as well as the rotation of the Earth, high tide - the ocean water reaches its highest level, low tide - when the ocean water reaches its lowest level, spring tides - occur during new and full moon; the moon, Earth, and Sun align in a straight line; Straight line = Spring tides; result in higher high tides and lower low tides, neap tides - occur during 1st and 3rd quarter; the moon, Earth, and Sun are at 90 degree angles; Ninety degrees = Neap tides; results in lower high tides and higher low tides,

Seasons & Tides

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