Matter Flashcards
solid
state of matter that has a fixed shape and volume
liquid
state of matter that has a fixed volume, but no fixed shape
gas
state of matter with no fixed shape or volume
properties
characteristics or features of an object or substance
diffusion
the spreading of one substance through another due to the movement of their particles
mass
the quantity of matter in an object (usually measured in grams or kilograms)
volume
the amount of space taken up by an object or substance
fluid
a substance that flows and has no fixed shape. Gases and liquids are fluids.
melting point
the temperature at which a solid substance turns into a liquid (melts) or a liquid turns into a solid (freezes)
boiling point
the temperature at which a liquid changes to a gas
sublimation
the change in state from a solid into a gas (or from a gas into a solid) without first becoming a liquid
precipitation.
falling water in solid or liquid form. The type of precipitation depends mostly on the temperature in the clouds and the air around them
meteorologist
scientist who uses observation of the atmosphere to predict or explain the weather
particle model
a description of the moving particles that make up all matter and how they behave. The model explains the properties of solids, liquids and gases.
expands
increase in size due to the movement of particles in a substance
