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| Refers to rock formed during a period of volcanic activity |
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| A method of solid-waste disposal that releases organic compounds, ash, soot, and other pollutants into the atmosphere |
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| The variable that you control in an experiment |
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| Atoms of the same element that differ only in their masses |
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| The tendency of an object rest to remain at rest, or of an object in motion to stay in motion |
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| The conclusion or prediction we make based on an observation or a series of observations |
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| The chemical bond formed when oppositely charged ions attract each other |
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| The charged partials that we formed when electron transfer occurs between atoms |
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| The liquid part of Earth and interrelated system of all water on Earth |
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| A possible solution to a scientific problem, based on observation and or prior knowledge. |
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| The particular environment in which an organism or species lives |
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| The amount of time requred for half of the sample of a radioactive istoes to decay |
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| the form of energy produced by the molecular motion of matter |
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| the maintenace of a stable internal envionment despite changes in the external environment |
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| plant- eating animals, which get their energy directly from plants |
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