Ch.15 vocab
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 Earths center and north and south poles about which Earth rotates
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| Rotation | Spinning of Earth on its axis
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| Revolution | The movement of one object around another
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| Orbit | The path of an object as it revolves around another in space
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| Solstice | When the sun is farthest north or south of the equator
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| Equinox | when the noon sun is directly overhead at the equator
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| Force | push or pull
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| Gravity | a force that pulls all objects toward each other
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| Law of Universal Gravitation | every object in the universe attracts every other object
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| Mass | amount of matter in an object
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| Weight | force of gravity on an object
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| Inertia | the tendancy of an object to resist a change in motion
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| Newton's 1st 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 a force
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| Phase | The different shapes of the moon we see from earth
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| Eclipse | when in object in space comes between the sun and a third object, it casts a shadow on an object
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| Solar Eclipse | when the moon passes directly between earth and sun blocking sunlight from earth
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| Lunar Eclipse | the blocking of sunlight to the moon that occurs when Earth is directly between the sun and the moon
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| Umbra | the darkest part of a shadow
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| Penumbra | the part of the shadow surrounding the dakest part
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| Telescope | a device built to observe distant objects by making them appear closer
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| Maria | dark, flat areas on the moons surface formed from huge ancient lava flows
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| Crater | a large pit formed by impact of meteoroids
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| Meteoroids | a chunk of rock or dust in space
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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.
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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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