A Family of Planets
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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| astronomical unit (AU) | the average distance between the Earth and the sun, or approximately 150,000,000 km
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| terrestrial planets | the small, dense, rocky planets of the inner solar system
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| prograde rotation | the counter-clockwise spin of a planet or moon as seen from above the planet's north pole
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| retrograde rotation | the clockwise spin of a planet or moon as seen from above the planet's north pole
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| gas gaints | the large, gaseous planets of the outer solar system
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| satellite | a natural or artifical body that revolves around a planet
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| phases | the different appearance of the moon due to varying amounts of sunlight on the side of the moon that faces the Earth
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| eclipse | an event in which the shadow of one celestial body falls on another
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| comet | a small body of ice, rock, and cosmic dust loosely packed together that gives off gas and dust in the form of a tail as it passes close to the sun
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| asteroid | a small, rocky body that revolves around the sun
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| asteroid belt | the region of the solar system most asteroids occupy
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| meteoroid | a very small, rocky body that revolves around the sun
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| meterorite | a meteoroid that reaches the Earth's surface without burning up completely
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| meteor | a streak of light caused when a meteoroid or comet dust burns up int he Earth's atmosphere before it reaches the ground
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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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Created by:
mfender
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