Earth's Movements and Seasons

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axis

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An imaginary line that passes from Earth’s North Pole

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revolution

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The movement of one object around another object

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season

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A period of the year with certain patterns of weather and day lengths

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solstice

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A day of the year when the noon sun reaches its highest or lowest point in the sky

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equinox

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A day when neither hemisphere of Earth is tilted toward or away from the sun, and day and night are the same length

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tide

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The predictable rise and fall of ocean water that occurs along Earth's coastline.

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spring tide

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A tide with the biggest difference between high and low tide.

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neap tide

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A tide with the least difference between consecutive high and low tides.

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lunar eclipse

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Occurs when the Earth comes between the sun and the moon, and the Earth's shadow falls on the moon.

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solar eclipse

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Occurs when the moon comes between the sun and Earth, and the moon's shadow falls on Earth.