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22 Cards in this Set
- Front
- Back
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Rotation
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circular movement of an object (spins)
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Solar Eclipse
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occurs when the Moon passes between the Sun and the Earth, and the Moon fully or partially covers the Sun
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Lunar Eclipse
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occurs when the moon passes behind the earth. This can occur only when the Sun, Earth, and Moon are aligned exactly, with the Earth in the middle.
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Sphere
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is a perfectly round object in three-dimensional space, such as the shape of a round ball.
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axis
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an imaginary line about which a body rotates
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revolution
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a motion in orbit or circular course or around another object
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solstice
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twice early point when the sun is the greatest distance from the northern or southern equator.(May 22 and Dec. 22)
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equinox
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the time or date (March 21 and Sept. 22)
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new moon
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when the moon is blocked by the sun. (Earth, Sun, Moon)
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full moon
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the phase of the moon in which its whole disk is illuminated.
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maria
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a large, level basalt plain on the surface of the moon
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rocket
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an elongated rocket-propelled missile or spacecraft.
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electromagnetic spectrum
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the range of wavelengths or frequencies over which electromagnetic radiation extends.
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moon phases
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Moon phases are different phases of the moon, the moon looks different day.
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orbit
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an orbit is the gravitationally curved path of an object around a point in space, for example the orbit of a planet around the center of a star system
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Space probe
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a small device used for obtaining information.
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Project Mercury
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Project Mercury was the first human spaceflight program of the United States.
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Project Gemini
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Project Gemini was the second human spaceflight program of NASA, the civilian space agency of the United States government.
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ellipse
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earths year long orbit around the sun
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Moon Phase
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Change in the periods of the moon as viewed from Earth
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Waxing Moon
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A moon anytime after a new moon an before a full moon.
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Mercury
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Smallest and closest planet to the sun. No true atmosphere.
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