Astonomy Test Chapter two vocabulary
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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| Corona | The outer layer of the sun's atmosphere
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| Terrestrial Planets | The name given to the four inner planets: Mercury, Venus, Earth, and Mars
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| Meteoroid | A chunk of rock or dust in space
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| Prominence | A loop of gas that protrudes from the sun's surface, linking parts of sunspot regions
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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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| Photosphere | The inner layer of the sun's atmosphere
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| Comet | A ball of ice and dust whose orbit is usually a long, narrow ellipse
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| Solar Wind | A steam of electrically charged particles produced by the sun's corona
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| Solar Flares | An explosion of hydrogen gas from the sun's surface that occurs when loops in sunspot regions suddenly connect
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| Meteor | A streak of light in the sky produced by the burning of a meteoroid in the Earth's atmosphere
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| Ellipse | An elongated circle, or oval shape; the shape of the planets' orbits
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| Geocentric | A description of the solar system in which all of the planets revolved around Earth
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| Sunspot | A dark area of gas on the sun that is cooler than the surrounding gases
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| Core | The central part of the sun, where nuclear fusion occurs
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| Meteorite | A meteoroid that has hit Earth's surface
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| Gas Giants | The name given to the first four outer planets: Jupiter, Saturn, Uranus, and Neptune
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| Nuclear Fusion | The process by which hydrogen atoms join together to form helium, releasing energy
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| Greenhouse Effect | The trapping of heat by a planet's atmosphere
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| Chromosphere | The middle layer of the sun's atmosphere
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| Asteroids | Objects revolving around the sun that are too small and too numerous to be considered planets
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| Extraterrestrial Life | Life that arises outside of Earth
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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:
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