Changing the Changing the States of MatterStates of MatterExplorers ClubExplorers Club

Luis GonzalesLuis Gonzales

What Is Matter?What Is Matter?

Everything is made of matterEverything is made of matter People and animalsPeople and animals Trees and plantsTrees and plants Cars and trucksCars and trucks Water and airWater and air

Matter has mass and volumeMatter has mass and volume Mass is the amount of matter in a substanceMass is the amount of matter in a substance Volume is the amount of space taken up by Volume is the amount of space taken up by

a substancea substance

Physical Properties of Physical Properties of MatterMatter Physical properties of matter can be Physical properties of matter can be

observed or measured observed or measured Observed with our sensesObserved with our senses Measured without changing the Measured without changing the

characteristics of the mattercharacteristics of the matter

The The statestate physical property is the form in physical property is the form in which a substance existswhich a substance exists

Three Common StatesThree Common States A substance’s state is:A substance’s state is:

SolidSolid When it is dense and rigid with a defined shape and When it is dense and rigid with a defined shape and

volumevolume

LiquidLiquid When it is fluid, takes the shape of its container, and When it is fluid, takes the shape of its container, and

has a defined volumehas a defined volume

GasGas When it is neither solid or liquid and has no definite When it is neither solid or liquid and has no definite

shape or volume shape or volume

Applying Physical Applying Physical ForcesForces Physical forces can change the state of a Physical forces can change the state of a

substance by adding or removing energysubstance by adding or removing energy Changing temperature or pressureChanging temperature or pressure Physical forces Physical forces do notdo not change the chemical change the chemical

properties of a substanceproperties of a substance

Changing TemperatureChanging Temperature

FreezingFreezing Withdrawing heat (energy)Withdrawing heat (energy) Changes liquid to solidChanges liquid to solid

MeltingMelting Adding heat (energy)Adding heat (energy) Changes solid to liquidChanges solid to liquid

BoilingBoiling Adding heat (energy)Adding heat (energy) Changes liquid to gasChanges liquid to gas

Changing the State of Changing the State of Water By Changing Water By Changing TemperaturesTemperatures

Solid State

Liquid State

Gas (vapor) State

MeltingFreezing Boiling