8th Science U6 L2-3
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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| A large celestial body that is composed of gas and that emits light; the sun is a typical star. | Star
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| The brightness of a star as seen from Earth. | Apparent magnitude
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| A measure of how bright a star would be if it were seen from a standard distance. | Absolute magnitude
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| A large cloud of gas and dust in interstellar space; a region in space where stars are born. | Nebula
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| A small, hot, dim star that is the leftover center of an old sunlike star. | White dwarf
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| A gigantic explosion in which a massive star collapses and throws its outer layers into space. | Supernova
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| A star that has collapsed under gravity to the point that the electrons and protons have smashed together to form neutrons. | Neutron star
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| A graph that shows the relationship between a star’s surface temperature and absolute magnitude; Hertzsprung-Russell diagram | H-R diagram
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| The location on the H-R diagram where most stars lie; it has a diagonal pattern from the lower right (low temp. and luminosity) to the upper left ( high temp. and luminosity). | Main sequence
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| The actual brightness of an object such as a star. | Luminosity
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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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Created by:
ashaver
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