Chapter3-UnitE
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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| What are astroids? | Small,solid,rocky bodies that orbit close to the Sun.
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| What are the giant gases? | The four largest planets-Jupiter, Saturn, Uranus, and Neptune- that are made mainly of hydrogen, helium, and other gases.
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| What is tectonics? | The processes of change in a crust as a result of the motion of hot material underneath.
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| What is a meteor? | When a particle enters Earth's upper atmosphere and the particle and the air around it become hot enough to glow in a brief streak of light.
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| What is a meteorite? | A space object that passes through Earth's atmosphere and reaches Earth's surface.
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| What is one astronomical unit? | Earth's average distance from the sun.
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| What is a comet? | A small, icy object that produces a coma when it gets close to the sun.
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| What is volcanism? | A process that moves molten rock from a planet's interior onto its surface.
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| What is an ellipse? | The shape of the planet's orbits in our solar system.
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| What are the terrestrial planets? | The closest planets to the Sun-Mercury, Venus, Earth, and Mars- that all have rocky crusts and dense mantles and cores.
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| What is a ring? | A wide, flat zone of small particles around a planet's equator.
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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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