Morning

Please Make sure to copy all notes into your notebook.

Today you will submit the Do Now and the answers to the Brainpop worksheet found onthe brainpop website.

You can submit the answers any way you want, print the worksheet or e-mail the answersnumbered 1-10

Today we start a new topic Chemistry, it will take us to the end of the year, first couple of lessons a quick review from last year then we will get into important topics for next year.

Any confusion, questions please do not hesitate to e-mail and I will answer your questions One on one or send supplemental material

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Have a great day and weekend.

Mrs. Russo

5/15/20 L.T. I will be able to identify Matter’s states and its propertiesDo Now: Copy and answer the following State Test

States of Matter• Also known as phases

• Describes a physical property

• Solid

• Liquid

• Gas

Solids, Liquids and Gases

Kinetic Theory of Matter

• All matter is made of tiny particles (atoms or molecules), which are in constant motion.

• How tightly these particles are packed or bonded determines what state they take.

Solids, Liquids and Gases

Kinetic Theory (cont.)

• Particles vibrate or move around more if the matter is heated.

• Particles vibrate or move around less if the matter is cooled.

Solids, Liquids and Gases

Solids• Have a definite shape and a

definite volume

• Particles are tightly packed, vibrating about a fixed position.

Solids, Liquids and Gases

Liquids• Have a definite volume, but

no definite shape

• They take the shape of their container.

• Particles are tightly packed, but far enough apart to slide over one another.

Solids, Liquids and Gases

Gases• Have no definite volume

and no definite shape

• They take the shape of their container.

• Particles are very far apart and move freely except when they collide.

Solids, Liquids and Gases

Changes of State• Adding or removing thermal

energy causes a change in state of matter.

• States can change from one state to another.

Solids, Liquids and Gases

Phase Changes

Description of

Phase Change

Terms for

Phase Change

Heat Movement

During Phase

Change

Solid to Liquid Melting

Heat goes into

the solid as it

melts

Liquid to Solid Freezing

Heat leaves the

liquid as it

freezes

Solids, Liquids and Gases

Phase Changes (cont.)Description of

Phase Change

Term for Phase

Change

Heat Movement

During Phase

Change

Liquid to gas

Vaporization,

includes boiling

and

evaporation

Heat goes into

the liquid as it

vaporizes

Gas to liquid CondensationHeat leaves gas

as it condenses

Solid to gas Sublimation

Heat goes into

the solid as it

sublimates

Solids, Liquids and Gases

Contracting and Expanding During Phase Change

Heating liquids and solids

–Particles move faster

–This faster motion causes the particles to move apart resulting in expansion.

Solids, Liquids and Gases

Contracting and Expanding

During Phase ChangeCooling liquids and solids

–Particles slow down

–Attraction between particles pulls them close together causing them to contract.

Solids, Liquids and Gases

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