ch.16 vocab project
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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| geocentric | a model of the universe in which Earth is at the center of the revolving planets and stars
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| heliocentric | a sun-centered model of the universe in which the sun is at the center of the revolving planets and stars
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| ellipse | an oval shape, which may be alongated or nearly circular
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| moon | a nutural satellite that revolves around a planet
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| core | central region
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| nuclear fusion | hydrogen atoms join together to form helium
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| radiation zone | a region of very tightly packed gas where energy is transferred mainly in the form of electromagnetic radiation.
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| convection zone | outer-most layer of the sun's interior
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| photosphere | the inner layer of the sun's atmosphrere
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| chromosphere | the middle layer of the sun's atmosphere
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| corona | outer layer, which looks like a white halo around the sun
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| solar wind | streams of electrically charged particles
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| sunspots | areas of gas on the sun's surface that are cooler than gases around them
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| prominences | huge, reddish loops of gas
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| solar flares | heating of gas on the sun to millions of degrees celsius, causing the gas to erupt into space
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| terrestrial planets | the four inner planets that are small, dense, and have rocky surfaces
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| greenhouse effect | trapping of heat by the atmosphere
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| gas giants | the four outer planets that are much larger and more massive than earth and do not have a solid surface
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| ring | a thin disk of small particles of ice and rock
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| comet | a "drty snowball" about the size of a mountain
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| coma | clouds of gas and dust that form a fuzzy outer layer
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| nucleus | the solid inner core of a comet
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| Kuiper Belt | A donut-shaped region that extends beyond Neptune's orbit to about 100 times Earths distance from the sun
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| Oort Cloud | a spherical region of comets that surrounds the solar system out to more than 1000 times the distance between pluto and the sun
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| Asteroids | rocky objects revolving around the sun that are too small and numerous to be considered planets
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| Asteroid Belt | the region of the solar system where most asteroids revolve around the sun between the orbits of Mars and Jupiter
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| Meteoroid | a chunk of rock or dust in space
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| Meteor | a streak of light in the sky produced by the burning of a meteoroid in Earths atmosphere
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| Meteorite | Meteoroids that pass through the atmosphere and hit Earths surface
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| Extraterrestrial Life | Life other than that on earth
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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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