Chapter 3 Section 1, 2, 3 VOCAB (Astronomy)
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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| Constellation | Pattern of stars
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| Visible Light (3-1) | Electromagnetic radiation seen by the unaided eye
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| Electromagnetic Radiation (3-1) | Energy traveling through space in the form of waves
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| Wavelength (3-1) | Distance between the crests of two waves
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| Spectrum (3-1) | Range of wavelengths of electromagnetic waves
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| Refracting Telescope (3-1) | Telescope that uses convex lenses to gather and focus light
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| Convex Lens (3-1) | Piece of transparent glass that's curved, making the middle thicker than the edges
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| Reflecting Telescope (3-1) | Telescope with one or more mirrors that gather light
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| Radio Telescope (3-1) | Device used to detect radio waves from objects in space
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| Observatory (3-1) | Building that contains one or more telescopes
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| Spectrograph (3-1) | Instrument that separates light into colors and photographs the resulting spectrum
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| Galaxy (3-2) | Giant structure that contains hundreds of billions of stars (ours is called the "Milky Way")
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| Universe (3-2) | All of space and everything in it
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| Light-Year (3-2) | Distance that light travels in one year
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| Parralax (3-2) | Apparent change of an object's position when seen from different place
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| Giant Star (3-2) | A very large star, much larger than the sun
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| Apparent Magnitude (3-2) | Brightness of a star "as seen fron Earth"
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| Absolute Magnitude (3-2) | Brightness of a star "if it were a standard distance from Earth"
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| Hertzsprung-Russell Diagram (3-2) | A graph relating the temperature and brightness of stars
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| Main Sequence (3-2) | Area on the Hertzprung-Russell diagram from upper left to lower right that includes more than 90 percent of all stars
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| Pulsar (3-3) | Neutron star that pruduces radio waves
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| Nebular (3-3) | Large amount of gas and dust in space, spread out in an immense volume
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| Protostar (3-3) | Contracting cloud of gas and dust; "the earliest stage of a star's life"
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| White Dwarf (3-3) | The remaining hot core of a star after its outer layers have expanded and drifted out into space
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| Supernova (3-3) | The explosion of a dying giant or supergiant star
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| Neutron Star (3-3) | A tiny star that remains after a supernova explosion
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| Black Hole (3-3) | The remains of an extremely massive star pulled into a small volume by the force of gravity
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| Quasar (3-3) | distant galaxy with a black hole at its center
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| Binary Star (3-4) | Star system that contains two stars
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| Eclipsing Binary (3-4) | Star system where one star periodically blocks the light from another star
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| Spiral Galaxy (3-4) | Galaxy with arms curve outward in a pinwheel pattern
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| Elliptical Galaxy (3-4) | Galaxy shaped like a flattened ball, containing only old stars
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| Irregular Galaxy (3-4) | Galaxy that does not have a regular shape
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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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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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