Chapter 15 Vocabulary Words
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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| Rotation | The spinning of Earth around its axis
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| Orbit | A curved path
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| Revolution | The movement of Earth around the Sun
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| Lunar Highlands | The mountainous areas of the Moon
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| Maria | The smooth dark regions of the Moon
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| Eclipse | The Moon's shadow travels across parts of Earth
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| Tides | A alternate rise and fall in sea level
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| Solar System | A system made of eight planets and numerous other objects that orbit the Sun, all held in place by the Sun's immense gravity
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| Astronomical Unit- | A unit of measure that equals 150 million km, which is the mean distance between the Earth and the Sun
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| Comet | A large body of ice and rock that travels around the Sun in an elliptical orbit
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| Meteorites | Any fragments from space that survive there plunge through the atmosphere and land on Earth's surface
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| Constellations | Groups of stars that form patterns in the sky
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| Supernova | An exploding star
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| Galaxy | Groups of stars, gas, and dust held together by gravity
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| Light year | The distance light travels in one year
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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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