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Qualitive
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Consisting of general observations.
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Quantitative
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Comprising numbers obtained by various measurements.
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Hypothesis
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A tentative explanation for a set of observations.
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Law
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A concise verbal or mathematical statement of a relationship between phenomena that is always the same under the same conditions.
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Theory
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A unifying principle that explains a body of facts and/or those laws that are based on them.
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Which is not true?
a. A hypothesis always leads to the formulation of law.
b. The scientific method is a rigid sequence of steps in solving problems.
c. A law summarizes a series of experimental observations; a theory provides an explanation for the observations.
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A. A hypothesis always leads to the formulation of law.
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Memorizing flash cards will ensure you get an A in chemistry.
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False. You need to be able to apply the knowledge.
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What is matter?
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Anything that occupies space and has mass.
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Mixture
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A combination of two or more substances in which the substances retain their distinct identities.
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Homogeneous mixture
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A mixture that is the same throughout. Sugar in water for example.
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Heterogeneous mixture
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A mixture that is not uniform throughout. Sand with iron fillings for example.
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