Earth
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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| Astronomy | The study of the moon, stars, and other objects in space
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| Axis | An imaginary line that passes through Earth’s center and the North and South poles, about which Earth rotates
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| Rotation | The spinning motion of a planet on its axis
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| Revolution | The movement of an object around another object
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| Orbit | The path of an object as it revolves around another in space
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| Solstice | The two days of the year on which the sun reaches its greatest distance north or south of the Equator.
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| Equinox | Nether pole is closer to the sun and the days are as long as night
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| Gravity | force that attracts all objects toward each other; measured in Newtons.
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| Mass | the amount of matter in an object
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| Weight | force of gravity on an object
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| Law of Universal Gravitation | every object in the universe attracts every other object
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| Inertia | the tendency of an object to resist change in motion
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| Newton’s first law of motion | an object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by an unbalanced force.
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| Phase | one of the different apparent shapes of the moon as seen on Earth
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| Eclipse | The partial or total blocking of one object in space by another
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| Solar eclipse | The blocking of sunlight to Earth that occurs when the moon is directly between the sun and Earth
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| Umbra | The darkest part of a shadow
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| Penumbra | The part of a shadow surrounding the darkest part
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| Lunar eclipse | The blocking of sunlight to the moon occurs when Earth is directly between the sun and the moon
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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:
Donu
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