tides - the daily rising and falling levels of the oceans and other large bodies of water , what causes tides - the gravitational pull of the moon and sun, high tide - a bulge of water that forms at the 2 places on Earth that are closest to and farthest from the moon, Spring Tides - large tides that occur when the pull of the moon's gravity and the pull of the sun's gravity reinforce each other., Neap Tides - small tides that occur when the pull of the sun works in opposition to the pull of the moon , Four things that affect tides - the moon, the sun, Earth's rotation, wind, and air pressure, When does a Spring Tide occur? - during a full moon and a new moon, When does a Neap Tide occur? - during a first quarter and a third-quarter moon, eclipse - the movement of one solar system object into the shadow of another solar system object, solar eclipse - the moon's shadow falls on the Earth, can only occur during a new moon, lunar eclipse - the Earth's shadow falls on the moon, can only occur during a full moon, umbra - the inner portion of the shadow, it does not receive direct sunlight, penumbra - the partially shaded outer region of the shadow, a wider area, it receives some sunlight,

Tides and Eclipses

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