Test Review
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| altitude | the angle between an object in the sky and the horizon
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| constellation | a region of the sky that contains a recognizable star pattern and that is used to describe the location of objects in space
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| right ascension | a measure of how far east an object is from the vernal equinox
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| declination | a measure of how far north or south an object is from the celstial equator
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| ecliptic | the apparent path of the sun across the sky throughout the year
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| month | a division of the year that is based on the orbit of th emoon around the Earth
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| year | the time required for the Earth to orbit once around the sun
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| horizon | the line where the sky and the Earth appear to meet
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| zenith | the point in the sky directly above an observer on Earth
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| Kepler | assistant to Brahe; announced that all planets revolved around the sun in elliptical orbits
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| Galileo | one of the first people to use a telescope to observe objects in the sky; discovered craters and mountains on the Earth's moon
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| Copernicus | believed in a sun-centered universe
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| Hubble | proved that other galaxies existed beyond the Milky Way
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| Ptolomy | Greek astronomer who believed in an Earth-centered universe with all planets revolving around it
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| Newton | His laws of gravity explained that all objects in the universe attract each other through gravity- this is why the planets stay in orbit
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| Brahe | Earth-centered universe with sun and moon revolving around it; all other planets revolve around the sun
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| Radio Waves | used to transmit radio and television signals
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| Microwaves | used in communication; radar, and to warm food
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| Infrared Waves | means "below red" used to all things give off some amount of infrared waves
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| Visible Light | the only part of the spectrum you can actually see; ROYGBIV
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| Ultraviolet Light | Good Effect= kills bacteria; Bad Effect= can cause cancer
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| X-Rays | useful in the medical field and to scan baggage at the airport
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| Gamma Rays | used to treat some forms of cancer
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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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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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Created by:
tclendaniel
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