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Big History Crossword

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