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8th Grade Unit 4.3 Galaxies, Stars, and the Universe

Horizontales
The distance light travels in one year, which is about six-trillion miles.
The electrically charged particles that flow out in all directions from the Sun's corona.
A change in the observed wavelength or frequency of a wave that occurs when the source of the wave or the observer is moving.
A dense core that may be left behind after a high-mass star explodes in a supernova.
The transfer of energy from place to place by the motion of heated gas or liquid.
The final stage of an extremely massive star, which is invisible because its gravity prevents any form of radiation from escaping.
A process in which particles of an element collide and combine to form a heavier element, such as the fusion of hydrogen into hellium which occurs in the Sun's core.
Verticales
A shortened version of "quasi-stellar," which means "seeming like a star." The surrounding galaxy is often hard to see because this quasi-star is so much brighter than it.
The stage in which stars produce energy through the fusion of hydrogen and hellium.
The Sun's outermost layer.
The apparent shift in the position of an object when viewed from different locations.
Spots on the photosphere that are cooler than surrounding areas.
The moment in time when the universe started to expand. Astronomers have calculated that this event happened 14 billion years ago.
Stars from inside a cloud of gas and dust. Stars form here.