6th Grade Space Vocabulary – Flashcards
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gravity
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The force of attraction between all masses in the universe
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Asteroid Belt
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The region between Mars and Jupiter where most of the asteroids are found
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Space Shuttle
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A spacecraft with wings; designed to transport astronauts between Earth and orbiting space station
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Space Station
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An orbiting space laboratory on which people could live and work for several years
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Space Probe
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A spacecraft carrying instruments intended for use in exploration of the physical properties of outer space
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Rocket
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Any vehicle self-propelled by a rocket engine
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Galileo
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Father of modern astronomy
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NASA
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National Aeronautics and Space Administration
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Geocentric Theory
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Earth centered system
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Heliocentric Theory
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Sun centered system
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Inertia
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The tendency of a moving object to continue in a straight line or a stationary object to remain in place
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Ellipse
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An elongated circle, or oval shape; the shape of the planets orbit
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Sun Spots
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A dark, cooler region on the surface of the sun
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Solar Flare
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An explosion of hydrogen gas from the sun's surface that occurs when loops in sunspot regions suddenly connect
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Solar Prominence
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Sheets of gas from the sun's surface
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Solar Wind
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A stream of electrically charged particles produced by the sun
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Planets
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Any of the 8 large celestial bodies in the solar system that revolve around the sun and shine by reflected light
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Rotation
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The time it takes for a planet to spin once on its axis
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Revolution
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The time it takes a planet to orbit the sun
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Gas Giant
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The name given to the first 4 outer planets; Jupiter, Saturn, Uranus, and Neptune.
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Comet
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A ball of ice and dust whose orbit is a long narrow ellipse
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Meteor/Meteorite/Meteoroid
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Streak of light/Meteoroid that has hit Earth's surface/A chunk of rock or dust in space
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Asteroid
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Objects revolving around the sun that are too small to be considered planets
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Retrograde Rotation
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The spinning motion of a planet from east to west (opposite the direction of most planets)
