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MATTER & CHANGE
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Matter Definition Anything that has mass and takes up space (has volume) Matter is made up of atoms.

Jan 19, 2018

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Eunice Cooper

Example: Phase Changes Physical Change  A change in a substance that does not involve a change in the identity of the substance.
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Page 1: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

MATTER &

CHANGE

Page 2: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Matter Definition Anything that has mass and takes

up space (has volume) Matter is made up of atoms.

Page 3: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Example: Phase Changes

Physical Change

A change in a substance that does not involve a change in the identity of the substance.

Page 4: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Other Physical Changes

Reversible Boil Freeze Melt Condense

IrreversibleBreakSplitCutCrush

Physical changes can be classified as reversible or irreversible.

Page 5: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

STATES OF MATTER

Page 6: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

States of Matter Solid

definite volume definite shape not easily compressed particles packed in fixed

positions

Solid Copper

Page 7: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

V1 Solid Videos: Video 1

Page 8: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

SolidsVideo 2 V2 Structure of ice

Page 9: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

States of Matter

Liquid definite volume indefinite shape not easily compressed particles close together, but not in

fixed positions

Page 10: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Characteristics of Liquids

Flow - takes the shape of its container

Definite volume - intermolecular attractions keep particles close together

Page 11: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

V3 Video 3 Liquid

Page 12: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

States of Matter

Gas indefinite volume indefinite shape easily compressed particles are at great distances

from one another Vapor: describes the gaseous

state of a substance that is generally a liquid or solid at room temperature. (ex: water vapor)

Page 13: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Characteristics of Gases

Expand to fill container random motion, no

attraction Are fluid (like liquids)

no attraction Very low densities.

Page 14: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Characteristics of Gases Can be compressed

Almost no volume = lots of empty space

Flow Undergo diffusion

Page 15: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

V4 Gas State Video 4

Page 16: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

States of Matter

Page 17: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

States of Matter

Page 18: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Phase Changes

Melting Point (Freezing): The temperature at which a solid changes to a liquid OR a liquid changes to a solid

Boiling Point: The temperature at which a liquid changes to a gas OR a gas changes to a liquid.

Sublime: When a substance changes from a solid phase directly to a gas phase without becoming liquid - example, CO2

Page 19: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

V5 Evaporation & Condensation

Page 20: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Phase Change – Condensation -- Gas to LiquidEvaporation – Liquid to gas

Page 21: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Vaporization Vaporization - the conversion of a liquid

to a gas or vapor Evaporation - vaporization when a liquid

is NOT boiling Vapor Pressure - force exerted by a gas

above a liquid

Page 22: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Vaporization vs. Condensation

How does temperature affect vapor pressure?

Page 23: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

N2

Page 24: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

What’s the Boiling Point?

Page 25: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Phase Changes

Page 26: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Boiling & Melting points Every substance has a unique boiling

& melting .

Page 27: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Different Physical Properties of MatterHelium Sulfur hexafluoride Density = 0.1786 g/ l Melting point = -

272.20 C Boiling Point =-

268.93 C Gas at room

temperature

Density =6.17 g/ L Melting Point =-78C Boiling Point = -64 CGas at room temperature

http://www.youtube.com/watch?v=52UAEQfMTtU

Page 28: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Physical Properties table

1. What substance(s) is a gas at 0 °C?

2. What substance(s) is a solid at 100°C?

Page 29: Matter Definition  Anything that has mass and takes up space (has volume)  Matter is made up of atoms.

Physical Properties table

What substances is a solid at -125 ° C?