science vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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what is the definition for chemical property | any characteristic of a material that indicates it can undergo a certain chemical change | flammability, oxidation
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what is the definition for colloid | heterogeneous mixture never settle and that are large enough to scatter light | fog
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what is the definition for compound | two or more elements chemically combined, can only be separated by chemical means | sodium chloride (NaCl), glucose (C6H12O6)
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what is the definition for chemical property | any characteristic of a material that indicates it can undergo a certain chemical change | flammability, oxidation
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what is the definition for distalliation | a process used to separate two substances in a mixture by evaporating a liquid | forming drinking water from seawater by heating the water to form a vapor
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what is the definition for element | matter containing the same kinds of atoms | oxygen, hydrogen, zinc
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what is the definition for heterogeneous mixture | mixture w/ easily distinguishable materials | granite, pizza toppings
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what is the definition for homogenous mixture | mixture w/ non-distinguishable materials blended evenly throughout | a solution, a colloid, or a suspension
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what is the definition for Law of Conservation of Mass | the total mass of all reactants in a chemical reaction is equal to the total mass |
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mixture | two or more substances physically combined, can easily be separated by physical means | salt and pepper, chocolate chip cookies
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physical change | any change in size, shape, or state of matter in which the identity of the substance remains | freezing water
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physical property | any characteristic of a material that can be observed without changing the identity | size, shape, mass, color
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solution | homogenous mixture containing microscopic particles in a liquid that remain uniformly | salt water, soda, vinegar
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substance | type of matter w/ fixed composition | element (iron) or compound (iron oxide)
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suspension | heterogeneous mixture containing visible particles in a liquid that will settle | muddy pond water,
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Tyndall Effect | scattering of light by colloid particles | high beams in fog
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