States of 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 that has no fixed volume nor shape
Properties
Characteristics of an object or substance
Diffusion
Spreading of one substance through another due to the movement of particles
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
The falling water in solid or liquid form. The type of precipitation depends mostly on the temperature in the clouds and the air around them.
Particle model
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
contracts
shorten or become smaller in size
alchemists
olden-day ‘chemist’ who mixed chemicals and tried to change ordinary metals into gold. Alchemists also tried to tell the future.
