Science Explosion v4, chapter 10
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| absolute magnitude | true brightness of a star
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| apparent magnitude | how bright a star appears to us
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| asteroid | irregularly shaped pieces of rock, metal, and dust and are sometimes called minor planets
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| astronomy | scientific study of celestial (of or in the universe) objects
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| binary system | a star group containing two stars that revolve around each other
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| black hole | a super-giant that collapses and disappears from space
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| circumpolar constellation | circles around the pole daily
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| comet | An icy chunk of frozen gases, water, and dust that continually orbits the Sun
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| constellation | groups of stars that appear to form pictures and make stars easier to find
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| galaxy | huge star system that contains millions, or even billions of stars and covers many light-years of space
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| light-year | the distance that light travels in one year
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| magnitude | the brightness of a star
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| meteorite | a meteor that does not burn up in Earth atmosphere and impacts Earth’s surface
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| meteoroid | a chunk of metal or stone that is moving toward Earth’s atmosphere
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| meteor | a meteoroid that lights up because of friction as it moves through Earth’s atmosphere
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| multiple star group | a small star group of three or four stars
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| nebula | interstellular gasses and debris
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| neutron star | neutrons tightly packed to form small star
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| parallax | the apparent movement or change in position of one star in relationship to other stars
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| pulsar | a neutron star that spins rapidly on its axis
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| variable star | star swells and shrinks, brightens and dims
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| red-shift | the color given by objects moving away from the Earth
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| star cluster | A large group of stars close enough to be held together by gravity
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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.
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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Created by:
marchscience
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