Stars, Galaxies, and the Universe
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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| Light-year | The distance light travels in one year
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| Fusion | Creation of energy by joining the nuclei of two hydrogen atom to form helium.
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| Convection | Heat transfer in a gas or liquid by the circulation of currents from one region to another.
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| Corona | The outer layer of the sun's atmosphere
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| Sunspot | A cooler darker spot appearing periodically on the sun's photosphere.
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| Solar wind | A stream of electrically charged particles produced by the sun's corona.
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| Parallax | An apparent shift in the position of an object when viewed from different positions.
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| Nebula | A large cloud of dust and gas that can break apart into smaller pieces and form stars.
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| Neutron Star | May occur when a supergiant collapses to a very dense core.
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| Black hole | An object whose gravity is so strong that nothing, not even light, can escape.
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| Main Sequence | The stage in which stars produce energy through the fusion of hydrogen into helium.
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| Doppler Effect | An observed change in the frequency of a wave when the source or observer is moving
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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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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:
zanenathaniel
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