44 terms

States of Matter

STUDY
PLAY
matter
is anything that has mass (weighs something) and occupies space.
chemistry
the study of matter
chemist
a person that studies chemistry
3 basic states of matter
solid, liquid, and gas
solid
molecules are really close together
liquid
molecules are spread out a little but not real far
gas
molecules are far apart and free to move in any direction
speed of SOLID atoms
SLOW
speed of LIQUID atoms
MEDIUM
speed of GAS atoms
FAST
What has a DEFINITE shape?
SOLIDS
What has an INDEFINITE shape?
LIQUIDS & GASES
What has a DEFINITE volume?
SOLIDS & LIQUIDS
What has an INDEFINITE volume?
GASES
temperature INCREASES
when heat is ADDED
temperature DECREASES
when heat is REMOVED
melting
is changing from a SOLID to a LIQUID
melting point
this is the temperature at which a SOLID melts
evaporation
is changing from a LIQUID to a GAS
sublimation
is changing from a SOLID to a GAS without passing through the LIQUID state
boiling point
this is the temperature at which a LIQUID changes to a GAS
condensation
is changing from a GAS to a LIQUID
freezing
is changing from a LIQUID to a SOLID
freezing point
this is the temperature at which a LIQUID freezes
atom
is the smallest unit of matter
temperature
measures the movement of particles
the SLOWER the movement of particles
the COLDER it is
the HIGHER the movement of particles
the HOTTER it is
thermometer
a tool used to measure temperature
heat
is the transfer of energy from a higher temperature to a lower temperature
pic of gas molecules
pic of liquid molecules
pic of solid molecules
melting
condensation
deposition
evaporation
freezing
sublimation
melting, evaporation, & sublimation
require energy (heat)
freezing, condensation, & deposition
releases energy (heat)
conduction
heat transfer involving CONTACT
convection
heat transfer involving currents (VENTS) within a fluid or gas
radiation
heat transfer involving heat escaping from the sun (RADIATES)
YOU MIGHT ALSO LIKE...