13 terms

Year 7 States of Matter

What is matter? 4 states of matter? Changing states
STUDY
PLAY
Matter
that which has mass and occupies space, consisting of atoms.
Solid
a form of matter that has a definite shape and volume
Liquid
matter that has a definite volume but no definite shape
Gas
A state of matter with no definite shape or volume
plasma
the fourth state of matter with ionised particles.
Melting
solid to liquid, eg. ice melts to water
Freezing
liquid to solid, eg. making ice-cubes from water.
Condensation
gas to liquid, eg. steam condenses on the shower window.
Evaporation
liquid to gas, eg.wet clothes dry up in the cloth line.
Same as Vaporisation.
Physical Change
a change in a substance that does not involve a change in the identity of the substance
Chemical Change
a change that produces matter with a different composition than the original matter
Sublimation
a substance changes from a solid directly into a gas, eg. dry ice and iodine.
Boiling
the rapid vaporisation of a liquid with vigorous bubbling, eg. water boils at 100 degree Celsius.