matter & msmt 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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| Density | The ratio of mass to volume which indicates the spacing of the particles in the substance
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| SI - International system of measurement | The measurement system accepted worldwide. Also known as the metric system.
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| Volume | The amount of space occupied by an object
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| Accuracy | How close a measurement is to the true/accepted value
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| Percent Error | A value calculated by subtracting the experimental value from the accepted value, dividing the difference by the accepted value, and then multiplying by 100
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| Precision | How closely a set of repeated measurements are to each other
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| Scientific Notation | numbers written in the form Mx10^n where the factor M is a number greater than or equal to 1 but less than 10 and n is a whole number
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| Matter | anything that has mass and takes up space
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| state of matter | solid, liquid, or gas
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| solid | state of matter where the particles have low energy and are spaced closely together
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| liquid | state of matter where the particles have enough energy to slide past each other
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| gas | state of matter where particles have so much energy they spread apart and fill the container
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| mixture | a blending of two or more substances in the same container
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| pure substance | a substance in which all of the particles are identical
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| element | a substance containing only one type of atom
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| compound | two or more different elements that are chemically bonded together.
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| particle diagram | a diagram that shows the arrangement of atoms in a substance
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| physical property/change | a description of how a substance appears or changes in appearance but but not in identity
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| chemical property/change | a description of how a substance can undergo a change in identity due to the rearrangement of atoms
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| mass | the amount of matter in an object
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| conversion factor/conversion fraction | a fraction created from two measurements that are equal to each other which is used to convert from one unit to another
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| factor label method/dimensional analysis | a calculation method that uses conversion factors to change from one unit to another
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