Science Vocab Block 1

Front 1

Rotation

Back 1

the action of rotating around an axis or center.

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Revolution

Back 2

a forcible overthrow of a government or social order in favor of a new system.

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Axis

Back 3

an imaginary line about which a body rotates.

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Orbit

Back 4

the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution.

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Tilt

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move or cause to move into a sloping position.

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Solstice

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either of the two times in the year, the summer solstice and the winter solstice, when the sun reaches its highest or lowest point in the sky at noon, marked by the longest and shortest days.

Front 7

Equinox

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he time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length (about September 22 and March 20).

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Seasons (Equator)

Back 8

-Licensed from iStockPhoto. noun. The equator is defined as an imaginary line drawn on the Earth and spaced equally between the North and South Pole. An example of the equator is the latitude of 0°. YourDictionary definition and usage example. the region of a magnet toward which the lines of magnetic induction converge (south pole) or from which the lines of induction diverge (northpole) 2.

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Seasons (Poles)

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the region of a magnet toward which the lines of magnetic induction converge (south pole) or from which the lines of induction diverge (northpole) 2. either of the two points on the earth's surface where the dipping needle of a compass stands vertical, one in the arctic, the other in the antarctic.

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Sphere

Back 10

a round solid figure, or its surface, with every point on its surface equidistant from its center.

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Hemisphere

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a half of the earth, usually as divided into northern and southern halves by the equator, or into western and eastern halves by an imaginary line passing through the poles.

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Equator

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an imaginary line drawn around the earth equally distant from both poles, dividing the earth into northern and southern hemispheres and constituting the parallel of latitude 0°.

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Latitude

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the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes.

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Longitude

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the angular distance of a place east or west of the meridian at Greenwich, England, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes.