Bellaire SCI8 Astronomy Chapter 2 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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| geocentric | A description of the solar system in which all of the planets revolve around the earth.
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| heliocentric | A description of the solar system in which all of the planets revolve around the sun.
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| ellipse | An elongated circle, or oval shape; theshape of the planets' orit
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| inertia | The tendacy of a moving object to continue in a straight line or a stationary object to reamain in place.
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| nuclear fusion | The process by which hydrogen atoms join together to make helium;; making energy.
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| core | The central part of the sun where, nuclear fusion occcurs.
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| photosphere | The inner layer of the suns atmosphere.
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| chromospheres | The middle layer of the suns atmosphere.
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| corona | The outer layer of the suns atmoshpere.
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| solar wind | A stream of elictrically charged particles produced by the suns corona.
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| sunspots | A dark area of gas on the sun that is cooler than surrounding gases.
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| prominence | A loop of gas that protrudes
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| solar flare | An explosion of Hydrogen gas from the suns surface that occurs when loop in sunspots region suddenly connect.
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| gas giant | The name given to the first four outer planets
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| comet | A ball of ice and dust whose orbit is usually a long narrow ellipse.
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| asteroid | Objects revolving around the sun that are too small and too numerous to be considered planets
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| asteroid belt | The region of the solar system between th eorbits of mars and jupiter, where many asteroids are found.
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| meteroid | A chunck of rock or dust in space.
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| meteor | A streak of light in the sky produced by the burnig of a meteroid in earths atmoshpere.
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| meteorite | A meteroid that has hit the earths surface.
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| extraterrestrial life | Life that rises outside the earth.
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| terrestrial planet | The name given to four inner planets.
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| retrograde rotation | The spinning motion of a planet from east to west, opposite of the direction of the rotation of most planets and moons.
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| greenhouse effect | The trapping of heat by the planets atmosphere.
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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.
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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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