States of Matter
definite shape and definite volume
What is a solid?
solid to liquid
melting
ice cubes to water
what is an example of melting
boiling point
The temperature at which a liquid boils.
What type of energy is involved in phase changes?
thermal energy
indefinite shape and definite volume
what is a liquid
liquid to gas
what is evaporation
water to vapor
evaporation
freezing point
the temperature at which a liquid freezes.
Is melting ice gaining or losing energy?
gaining
indefinite shape and indefinite volume
what is a gas
gas to liquid
what is condensation
water to ice
freezing
melting point
the temperature at which a solid melts.
Describe a scenario in which an object is losing energy. What change of state is occuring?
freezing, condensation, deposition
free flowing particles with lots of energy
what is a gas
liquid to solid
freezing
dry ice
what is an example of sublimation
sublimation
The change in state form a solid directly to a gas without passing through the liquid state.
Describe a scenario in which an object is gaining energy. What change of state is occuring?
melting, evaporation, sublimation
particles are tightly packed together
what is a solid
solid to gas
sublimation
frost
what is an example of deposition
REVIEW: energy
The capacity for doing work.
CRITICAL THINKING: What happens to energy when it is "lost"?
It shifts to its surroundings.