Where is matter?
everywhere
The kinetic theory of matter states that the particles that make up all matter are constantly __________
moving
a solid has definite volume and ______
shape
a liquid only has a definite ________
volume
What is the fourth state of matter?
plasma
a liquid can flow ______
freely
Heat transfer is the movement of ________ energy from one place to another
thermal
Convection is the transfer of thermal energy by the motion of ________
fluids
Radiation is the transfer of thermal energy by ___________ waves
electromagnetic
Thermal expansion states that added thermal energy causes most substances to _________ in size
increase
The melting point of a liquid is when a solid turns into a ________ state
liquid
The boiling point of a liquid is when a liquid turns into a _______
gas
Physical properties of matter are __________ of all matter that can be observed and measured without changing the chemical composition of the substance
features
Physical changes are changes in the ____________ of a substance
appearance
When something dissolves, molecules are spread __________ throughout a substance
evenly
In a solution, the substance _________ in another
dissolves
A solvent is the substance in which the solute ____________
dissolves
A colloid is a __________ mixture that has particles that are not yet dissolved or settled
heterogeneous
Concentration means the amount of _________ is low compared to the amount of solvent
solute
Suspension means the particles of one substance are _____________ mixed in another substance
temporarily