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Big History Crossword

Teacher: Leah kaplan
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Across
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The fundamental force of attraction between bodies of mass
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A thoughtful guess or hypothesis can also be known as a
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Who proposed the idea of an earth centered universe? (last name)
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What type of reaction is happening in the core of a star?
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An attempt to explain the beginning of humanity and the Universe
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A specific set of conditions necessary to enable greater complexity
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Who proposed the theory of universal gravity? (last name only)
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The father of modern observational astronomy (first name)
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The process of growth or increase, typically by the gradual accumulation of additional layers or matter
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The study of the properties and interactions of astronomical bodies
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Before the invention of the telescope, what did ancient astronomers use to try to determine the distance of stars from Earth?
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Degrees of magnification, or perspective, used to measure time, space, and size
Down
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The study of past events
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The idea of breaking history into chunks
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A strategy used to decide whether a story or concept should or should not be “trusted"
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The idea that the Earth was shaped by slow-moving forces still in operation today
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The Earth’s crust is broken up into dozens of plates, which float upon the slowly moving rock of the
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A mysterious substance that is very common throughout the Universe
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The study of the Earth, including its composition and history
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The study of the composition, structure, properties and change of matter
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Hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed by cooling