Astronomy 1-
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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| constellations | patterns of stars in the sky
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| electromagnetic radiation | energy that can travel directly through space in the form of waves
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| visible light | light you can see with your eyes
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| wavelength | the distance between the crest of one wave and the crest of another
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| spectrum | the range of colors with different wavelengths
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| refracting telescope | uses convex lenses to get large amounts of light into a smaller area
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| convex lens | a piece of transparent glass, curved so that the middle is thicker than the sides
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| reflecting telescope | a telescope that uses mirrors instead of convex lenses
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| radio telescopes | a device used to detect radio waves from objects in space
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| observatory | a building that contains one or more telescopes
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| spectrograph | breaks light from an object into colors and photographs the resulting spectrum
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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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