chapter 15 vocabulary science
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 moon, stars, and other objects in space.
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Axis | The imaginary line that passes through Earth's center and North and South poles.
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Rotation | The 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 object 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 | The two days of the year on which neither hemisphere is tilted toward or away from the sun.
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Force | A push or a pull exerted on an object.
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Gravity | A force that moves rocks and other materials downhill; the force that pulls objects toward each other.
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Law of Universal Gravitation | The scientific law that states that every object in the universe attracts every other object.
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Mass | The amount of matter in an object.
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Weight | The force of gravity on an object.
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Inertia | The tendency of an object to resist a change in motion.
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Newton's 1st law of motion | The scientific law that states that 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 | One of different apparent shapes of the moon as seen from 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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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 a shadow surrounding the darkest 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 area's on the moon's surface formed from huge ancient lava flows.
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Crater | A bowl-shaped area that forms around a volcano's central opening.
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Meteoroid | 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.
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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