Astronomy vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Terrestrial Planet | One of the higher dense planets nearest to the sun; Mercury, Venus, Earth, or Mars
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| Gas Giants | A planet that has a deep, massive atmosphere, such as Jupiter, Saturn, Uranus, or Neptune
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| Astronomical Unit | The average distance between Earth and the Sun; approximately 150 million km. symbol, A.U.
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| Revolution | The motion of a body that travels around another body in space; one complete trip around an orbit
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| Rotation | The spin of a body on its axis
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| Dwarf Planet | A celestial body that orbits the sun, is round because of its own gravity, but has not cleared its orbital path
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| Oort Coud | A spherical region that surrounds the solar system, that extends from the Kuiper Belt to almost halfway to the nearest star, and that contains billions of comets
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| Kuiper Belt | A region of the solar system that is just beyond the orbit of Neptune and that contains small bodies made mostly of ice
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| Comet | A small body that gives off gas and dust as it passes close to the sun; a typical comet moves in an elliptical orbit around the sun and is made of dust and frozen gasses
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| Asteroid | A small, rocky object that orbits the sun; most asteroids are located in a band between the orbits of Mars and Jupiter
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| Meteoroid | A relatively small, rocky object that travels through space
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| Meteor | A bright streak of light that results when a meteoroid burns up in earth's atmosphere
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| Meteorite | A meteoroid that reaches Earth's surface without burning up completely
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| Prograde rotation | When the planet is spinning forward instead of backwards
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| Retrograde Rotation | When the planet is rotating backward instead of forwards
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| Solar System | The sun and all the planets and other bodies that orbit around it
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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