Science Quiz / ESSH Michelle Hoelzer Ch 24

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QUIZ: Can you name the ESSH Michelle Hoelzer Ch 24?

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A variable radio source of small size that emits radio pulses in very irregular periods
The theory that proposes that the universe originated as a single mass, which subsequently exploded (3 words)
Dust and gas found between stars (2 words)
The study of the universe, including its properties, structure, and evolution
A sequence of stars on the Hertzsprung-Russell diagram, containing the majority of stars, which runs diagonally from the upper left to the lower right (2 words)
The cluster of 20 or so galaxies to which our galaxy belongs (2 words)
A galaxy that lacks symmetry (2 words)
Changes in the spectra of galaxies that indicate they are moving away from the Milky Way as the result of the expansion of space (3 words)
The nuclear reaction in which hydrogen nuclei are fused into helium (2 words)
A very small galaxy, usually elliptical and lacking spiral arms (2 words)
An exploding star that increases in brightness many thousands of times
A galaxy having straight arms extending from its nucleus (3 words)
A star that has exhausted most or all of its nuclear fuel and has collapsed to a very small size; believed to be near its final stage of evolution (2 words)
A flattened, rotating galaxy with pinwheel-like arms of interstellar material and young stars winding out from its own nucleus (2 words)
The distance light travels in a year; about 6 trillion miles (2 words)
A cloud of interstellar dust that obscures the light of more distant stars and appears as an opaque curtain (2 words)
A relatively dense dust cloud in interstellar space that is illuminated by starlight (2 words)
HintAnswer
Red giants that overshoot equilibrium then alternately expand and contract (2 words)
A large, cool star of high luminosity; a star occupying the upper-right portion of the H-R diagram (2 words)
A plot of stars according to their absolute magnitudes and spectral types (2 words)
A cloud of interstellar gas and/or dust
Undetected matter that is thought to exist in great quantities in the universe (2 lockers)
Extremely dense solar material caused by electrons being displaced inward towards an atom’s nucleus (2 words)
The apparent brightness of a star if it were viewed from a distance of 10 parsecs; used to compare the true brightness of stars (2 words)
Groups of gravitationally bound galaxies that sometimes contain thousands of galaxies (2 words)
A gaseous nebula that derives its visible light from the fluorescence of ultraviolet light from a star in or near the nebula (2 words)
A very large star of high luminosity
A shell of incandescent gas expanding from a star (2 words)
A massive star that has collapsed to such a small volume that its gravity prevents the escape of all radiation (2 words)
A galaxy that is round or elliptical in outline; it contains little gas and dust, no disks or spiral arms, and few hot, bright stars (2 words)
A cloud of glowing gas excited by ultraviolet radiation from hot stars (2 words)
Relates the distance to a galaxy and its velocity (2 words)
A star of extremely high density composed entirely of neutrons (2 words)
A collapsing cloud of gas and dust destined to become a star

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