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Unit D - Chp. 16
Vocabulary Words for Test
Question | Answer |
---|---|
Atmosphere of the sun | Corona |
Group of stars, gas, and dust | Galaxy |
Distance light travels in one year | Light-Year |
Brightness of a star | Magnitude |
Name of the galaxy we live in | Milky Way |
Surface of the sun | Photosphere |
Burst of energy from the sun's atmosphere | Solar Flare |
Particles thrown into space by the sun | Solar Wind |
Dark areas on the surface of the sun | Sunspots |
Everything that exists | Universe |
Process that produces solar energy | Fusion |
How bright a star actually is | Absolute magnitude |
How bright the star appears from Earth | Apparent magnitude |
Energy from the sun travels in ___ | Waves |
The layer of the sun where sunspots occur | Photosphere |
The layer of the sun that is the hottest | Core |
The layer of the sun where cooler particles are pulled down by gravity | Convection Zone |
The types of energy released by the sun | Infrared waves, X-rays, radio waves, ultraviolet rays |
3 Types of Galaxies | Spiral, Elliptical, Irregular |
Happens when Earth casts a shadow on the moon. | Lunar Eclipse |
Happens when the moon blocks the sun's light | Solar Eclipse |
Tools used to measure the angle between a star and the horizon | Astrolabe and Sextant |
The reason the constellations seen in the sky change each different season | Earth REVOLVES around the sun. |
The reason the stars appear to move across the sky each night | Earth ROTATES on its axis. |