The Sun- Earth- Moon System 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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| Sphere | A round three dimensional object who's surface is the same distance from the center at all points.
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| Axis | An imaginary line around which earth spins.
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| Rotation | The spinning if earth on its axis, which causes day and night to occur.
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| Revolution | Earths yearly orbit around the sun.
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| Ellipse | Elongates, closed curve that describes earths year long orbit around the sun.
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| Solstice | An astronomical event that occurs twice each year as the Sun reaches its highest or lowest excursion relative to the celestial equator on the celestial sphere.
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| Equinox | The time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length (about September 22 and March 20).
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| Moon Phase | The different forms the moon takes in its appearance from earth.
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| New Moon | The phase of the moon when it is in conjunction with the sun and invisible from earth, or shortly thereafter when it appears as a slender crescent.
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| Waxing | When the illuminated part of the moon is growing.
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| Full Moon | The phase of the moon in which its whole disk is illuminated.
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| Waning | When the illuminated section of the moon is decreasing in size.
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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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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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