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19 Cards in this Set
- Front
- Back
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CHEMISTRY
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Is the study of the composition,structure,properties, & reactions of matter
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MATTER
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Anything that has mass & occupies space
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CHEMICAL
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any material used in or produced by a chemical process
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SUBSTANCE
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a chemical that consists of 1 type of matter & always has the same composition & properties wherever it is found
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STATES OF MATTER
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liquid, solid, & gas
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PHYSICAL PROPERTIES
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can be observed or measured without affecting the identity of the substance
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describe what are
PHYSICAL PROPERTIES |
color, odor, melting, boiling, or freezing point, state
(solid,liquid or gas) luster, conduction of electric or heat |
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SOLID
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has definate shape & volume
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LIQUIDS
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has definate volume, but not definate shape it takes the shape of the container it is in
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GAS
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does not have definate shape or volume
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PHYSICAL CHANGE
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when matter undergoes change of state its shape or color may change but its identity will remain the same
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Types of
PHYSICAL CHANGE |
change of state(solid,liquid or gas)
appearance, shape, or size |
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CHEMICAL PROPERTIES
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the ability of a substance to change into something new through chemical interaction
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CHEMICAL INTERACTIONS
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tarnishing, oxidation, burning
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SCIENTIFIC METHOD
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OBSERVATION, HYPOTHESIS, EXPERIMENT, THEORY
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OSERVATION
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1st step in scientific method , you obtain data through observation orask the question why?
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HYPOTHESIS
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2nd step in scientific method.
you form a hypothesis to answer the question why` |
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Experiment
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3rd step do testing to see if your hypothesis is correct. if not you form a new hypothesis and continue testing.
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THEORY
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last step in scientific method. after testing results must be testable with repeatable results so the more testing performed to confirm or disprove a theory the better.
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