Era 1 Overview: The Big History - Stanton
Galaxy, universe, star, planet. Checkpoint 2.3, p. 31 #4: Scientists often suggest that the expansion of the Universe is similar to the expansion of raisin bread as it bakes in an oven. As the loaf increases in size, individual raisins move farther apart in the expanding bread. During a homework assignment, two students suggest the following ... ................
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