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Science Test 10/12

What are the states of matter? solid,liquid,gas,plasma,B.E.C
What does B.E.C mean? Bose-Einstein condensate
Where you have ______, you have _____. motion, energy
Solid has a fixed volume and shape
Liquid has a fixed volume but no fixed shape
gas has no fixed shape or volume
plasma state of matter in which atoms have been stripped of their electrons. ( a super heated gas)ex.sun,lightning
B.E.C. a new state of matter discovered at extremely low temp. (cold)
______ have very ____ energy and can vibrate, but not a lot. solids, little
_____ has more engery than solids. liquids.
______ is the most unstructured. ___ amount of energy. Moves very fast. ____,______, and _____ can change it. gas, huge, temp., volume and pressure
changing the state of matter is a.... physical change.
Process: melting solid to liquid
melting point lowest temp. at which a substance STARTS to melt. ( same temp as the freezing point)
Process: freezing liquid to solid
freezing point the temp. in which a substance BEGINS to become a solid. ( same temp as the melting point)
Process: evaporation liquid to gas
boiling point the temp. in which a substance begins to evaporate into a gas.
process: condensation gas to liquid
sublimation when a solid changes directly to a gas
___ mass and ____ temp. makes atoms go faster. less, hotter
Boyle's law ( gas law ) for a fixed amount of gas, the ___ increases as its ______ decreases. the relationship between volume and pressure. volume, pressure
charles law ( gas Law ) for a fixed amount of gas, the volume _____, as the temp. ______. relationship between temp. and pressure. increases, increases. (temp and volume are directly proportional!!)
physical changes a change in any physical property of a substance, not the substance itself. ex. stretching a rubberband
chemical changes a change of one substance into another substance.
indications that a chemical change is happening an odor, change in temp., change in color, precipitate forms, gas is present
Created by: 1l2b