7 Exploring Space
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| Electromagnetic Spectrum | The range (short to long) of wavelengths
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| Telescope | Used to magnify (make bigger) objects in space so that people can see the objects in space.
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| Refractor | Telescope that magnifies (makes bigger) objects. It uses a convex (curved outward like the surface of a ball) glass lens to bend light and bring it into focus
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| Reflector | Telescope uses a concave (curved inward like a bowl) glass lens and magnifies (make bigger) an object
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| Observatory | A large building used to view the sky, stars, and planets. It often has a dome-shaped (curved) roof
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| Orbit | A curved path, usually oval in shape, created by gravity
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| Satellite | Any object that orbits around another object
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| Space Probe | Manmade instrument that goes deep into space to gather (get) and return data (information)
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| Space Shuttle | Vehicle that carries supplies or people into space; it can be reused (used again)
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| Apollo | The final (last) project to get people on the moon
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| Global Positioning System (GPS) | Uses satellites to find locations on the Earth
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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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