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| an instrument sued to measure temp. |
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| tha amount of matter in an object |
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| the curved surface of a liquid |
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| how hot or cold something is |
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| measure of the pull of gravity on an object |
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| basic unit for measuring the volume of a soild |
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| force attraction between all objects |
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| temp. scale used to measure the very low temps.,especially outer space |
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| in the metric system, temp. is measured |
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| anything that has mass and takes up space |
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| the movement of the molecules in this phase is described as "able to move freely to all places" |
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| the name of the vertical column of elements on the periodic table |
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| the elements to the left of the zig-zag line on thee periodic table |
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| the atomic number represents this number |
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| mass per unit volume; a physical property of all matter |
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| the amount of water an object replaces |
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| used to find the volume of water |
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| phase of matter that has no definte shape or volume |
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| phase of matter with a definite volume but has no definite shape |
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| phase of matter with definite shape and volume |
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| the study of matter and its reaction |
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| change that produces new subtances |
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| the number of elements found in nature |
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| change that doesn't produce new subtances |
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| change from gas to liquid |
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| horizontal row of elements |
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| change from a solid to a liquid |
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| upward force exerted by a gas or liquid |
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| negatively charged particles |
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| positively charged particles |
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| number of protons in the nucleus of the atom |
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| the center core of an atom |
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| number of protons and neutrons in the nucleus of an atom |
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| substance made up of 2 or more elements that are chemically combined |
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| 2 or more subtances that have been combined but aren't cemically combined |
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| the number of electrons will be found in the first energy level |
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| unit used to measure force |
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| suggested solution to a problem |
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| use your senses and pay close attention to everything that happens |
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| compare an unknown value with a known value |
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| anything that can be affect the results of an experiment |
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| an amount used to measure something |
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| lowest possible tempetures |
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| temp. scale used in the US |
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| study of moon and stars and everything in space |
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| a stright line 23.5 degrees |
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| sun is farthest from the equator north or south |
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| equal days and equal nights |
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| the darkest part of the moon's shadow |
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| larger part of the moon's shadow that is less dark than the umbra |
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| round pit covering the moon's surface |
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| dark flat areas on the moon's surface |
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| mountains on the moon's surface |
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| the moon is in the Earth's shadow |
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| the moon blocks the sun's light from reaching Earth |
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| the layer of the sun's atmosphere that produces light |
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| the layer of the sun's atmosphere that is a redish color |
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| layer of the sun's that looks like a halo |
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