Question | Answer |
states of matter | the physical forms in which matter can exist |
atom | the smallest mater of a subtance that still has that substance's characteristic properties |
molecule | the combination of two or more atoms creating an element or compound |
solid | a state of matter that has a definite volume and a definite shape |
crystalline | a very orderly solid with a three-dimensional arrangement of particles found in a repeating pattern of rows |
amorphous | a less organized solid object with particles that have no special or particular arrangment or pattern |
liquid | a state of matter that has a definite volume and no definite shape |
surface tension | the force that acts on the suface of a liquid and that tends to minimize the area of the surface |
viscosity | the resistance of gas of liquid to flow |
gas | a state of matter that has no definite volume or shape |
temperature | a measure of how hot(or cold) something is; specifically a measure of the movement of particles |
melting | the change of state where a solid becomes a liquid by adding energy |
endothermic | a change in which energy, in the form of heat, is added to a substance |
freezing | the change of state where a liquid becomes a solid by removing energy |
exothermic | a change in which energy, in the form of heat, is removed from a substance |
evaporation | the change of state from liquid to gas at the suface of the liquid caused by an increase in energy |
boiling | the change of state from liquid to gas thoughout a liquid caused by an increase in energy |
condensation | the change of state where a gas becomes a liquid by removing energy |
sublimation | the change of state where a solid directly becomes a gas without passing though a liquid state |