powerpoint

The 3 states of matter

8th gradeMade by: Lance Bengochea

The 3 States of MatterO State of Matter- the physical forms

in which a substance exists.O There are 3 states of matter.O SolidsO LiquidsO Gases

A. SolidsO Solid- the state of matter that has a

definite shape & volume.O A solids shape and volume stay the

same.

Solids (cont.)O Particles are very close together.O They have a strong attraction for

each other.O The particles vibrate.

Examples of SolidsO WoodO Humans O ComputersO MarblesO Weights

B. LiquidsO Liquid- the state of matter that has a

definite volume, but takes on the shape of its container.

O Particles move fast enough to overcome the attraction between some of the particles.

O Particles slide past each other.O Liquids easily change shape.O Liquids don’t easily change volume.

Liquids (cont.)O Ex: if you have a glass of milk how

can you change the shape? How can you change the milks volume?O All liquids have surface tension.O Surface tension- a force that holds

the particles together.O Surface tension (ST) causes some

liquids to form spherical drops.

Liquids (cont.)O Different liquids have different ST.O Ex: gasoline, has low ST and forms

flat drops.O All liquids have viscosity.

1. ViscosityO Viscosity- a liquids resistance to

flow

Low viscosity High viscosity

Examples of LiquidsO WaterO Apple juiceO SodaO Kool-aidO Milk

C. GasesO Gas- the state of matter that has no

shape or volume.O One small helium tank can fill almost

700 balloons.O How is this possible?O The tank is under pressure.

Gases (cont.)O Particles in a gas move quickly, so

they can break away from their attraction for other particles.

O The amount of empty space between gas particles can change.

Example

Helium tankHelium balloon

A helium tank holds more gas particles and they are closer together, but in a balloon they are much farther apart and they have much more room to move around

Examples of GasesO Carbon DioxideO OxygenO Water VaporO HydrogenO Helium

Examples O These are the particles of each of the

states of matter below.