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Vocabulary

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Term
Definition
Density   (p.6)How tightly atoms are packed in a substance.  
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Geocentric   (pp.10-11)The thought that the earth was at the center of the universe.  
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Heliocentric   (p.19)The thought that the sun is at the center of everything and assumed that all of the planets, including earth traveled around the sun.  
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Robert Grosseteste   (p.17)Father of the scientific method, considered the first modern scientist.  
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Papyrus   (p.2)A primitive form of paper, made from a long-leafed plant of the same name.  
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Ptolemy   (pp.10-11)Thought the earth was the center of the universe and the planets and stars orbited about the earth in a series of circles. Also called the Ptolemaic system or geocentric system.  
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Leucippus and Democritus   (p.4)Ancient Greek scientists who proposed all matter was really made of little units called "atoms".  
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Aristotle   (pp.8-9)Father of life sciences also believed in spontaneous generation.  
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Thales, Anaximander and Anaximenes   (p.4)Viewed as first real scientists.  
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Johannes Kepler   (p.20)Used mathematical data to support the heliocentric system and found the oval or ellipse pattern the planets traveled around the sun.  
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Alchemy   (p. 12)A way by which lead (or other inexpensive substance) could be transformed into gold (or other precious substances).  
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Nicolaus Copernicus   (p.19)Believed the sun was at the center of everything and assumed that all of the plants traveled around the sun. Also called the heliocentric system or Copernican system.  
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Classification   (p.8)Ordering facts in a reasonable and systematic way.  
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Spontaneous generation   (p.9)The idea that living organisms can be spontaneously formed from non-living substances.  
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Science   (p.1)A branch of study dedicated to the accumulation and classification of observable facts in order to formulate general laws about the natural world.  
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