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Science
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An endeavor dedicated to the accumulation and classification of observable facts in order to formulate general laws about the natural world.
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Penicillin
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A mixture of chemical compounds produced by certain molds that have strong antibacterial properties.
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Poppy
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A plant the seeds of which contain morphine and codeine, pain-relieving drugs.
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Morphine
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A pain-relieving drug.
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Codeine
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A pain-relieving drug.
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Papyrus
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An ancient form of paper made from a plant of the same name.
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Atom
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The smalles chemical unit of matter.
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Density
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A measure of the amount of mass in an object per unit volume.
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Classification
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A systematic arrangement of data into groups based on set criteria.
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Spontaneous generation
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The idea that living organisms can be spontaneously formed from non-living substances.
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