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16 Cards in this Set
- Front
- Back
A solar eclipse occurs when the ______ blocks the ______ light. |
Moon, sun's |
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A star is a gigantic ball of very _____ that give off ______. |
Hot gases, electromagnetic radiation |
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Red stars are the _____. White or blue white stars are the ______. |
Coolest, hottest |
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Give 4 characteristics of our Sun. |
1. A medium-sized star 2. It's energy comes from the fusion of hydrogen and helium atoms. 3. Gives off thermal and light energy 4. Closest star to Earth |
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The _________stars are the stars that give off the most energy. |
Brightest |
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The distance light travels in one year |
Light year |
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Part of the Sun that gives off the light energy we see |
Photosphere |
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Part of the photosphere, looks dark because they are cooler than the rest of the photosphere |
Sunspots |
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A star is born in a fiery cloud of ____ and _____ called ______ and dies when it runs out of _____ (______). |
Gas, dust, nebula, fuel, hydrogen |
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Gigantic explosion that occurs at the end of life in some stars. |
Supernova |
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Point in space that has such a strong force of gravity that nothing within a certain distance of it can escape getting pulled into it. |
Black hole |
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Our solar system is part of a _____ galaxy called the ______. |
Spiral, Milky Way |
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Huge system of stars,dust, and gas held together by gravity. |
Galaxy |
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All galaxies constantly move through ______. |
Space |
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Name and describe the 3 types of galaxies. |
Spiral-looks like a pinwheel, bright in the middle with wispy arms spreading out from the center. Irregular-no real shape. Elliptical-almost round or oval. Like a football. |
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A group of stars that forms a pattern, appear to move across the sky because Earth rotates. |
Constellation. |