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Matter and Changes
Physical and chemical changes, states of matter
Term | Definition |
---|---|
solid | state of matter, definite shape, definite volume |
liquid | state of matter, definite volume, takes shape of container |
gas | state of matter, takes shape and volume of container |
bose einstein condensate | super cold state of matter that clumps together, barely moving |
plasma | super hot state of matter found in stars and lightning |
endothermic | process that absorbs energy from the surroundings, feels cold |
exothermic | process that releases energy into the surroundings, feels warm |
vaporization | liquid to gas |
condensation | gas to liquid |
freezing | liquid to solid |
sublimation | solid to gas |
deposition | gas to solid |
ionization | gas to plasma |
deionization | plasma to gas |
slanted lines | lines that show a single phase on a phase change graph |
horizontal lines | lines that show a phase change, 2 phases present, on a phase change graph |
kinetic energy | energy change during an increase in temperature |
potential energy | energy change during a phase change |
property | characteristic of a substance that can be observed |
physical property | property that can be observed WITHOUT changing the identity of the substance |
chemical property | property that can only be observed by changing the identity of the substance |
melting point | temperature at which a substance changes from a solid to a liquid |
boiling point | temperature at which a substance changes from liquid to gas |
density | mass per unit volume |
change | act of altering a substance |
physical change | a change that occurs without changing the identity of the substance |
chemical change | a change that occurs causing the identity of the substance to change |
chemical reaction | a chemical change, cannot be undone or reversed by physical means |
matter | has mass and and volume |
mass | amount of matter |
volume | amount of space an object occupies |