Essential Questions

• What characteristics identify a substance?• What distinguishes physical properties from chemical

properties?• How do the properties of the physical states of matter

differ?

Properties of MatterCopyright © McGraw-Hill Education

MatterProperties and Changes

Front Cover

Matter

• Anything that has massand takes up space

• Everything around us

States of Matter

• Physical forms of matter, either solid, liquid or gas.

• Also known as Phase Changes

States of Matter• Solids are a form of matter that have

their own definite shape and volume

• Liquids are a form of matter that have a definite volume but take the shape of the container

• Gases have no definite shape or volume. They expand to fill their container.

Copyright © McGraw-Hill Education

States of Matter

• Gas

• Solids

• Liquid

Copyright © McGraw-Hill Education

States of Matter• How would you describe the

movement of the particles in each phase

Copyright © McGraw-Hill Education

Physical Properties of

Matter• A characteristic of matter that can be observed or measured without changing the sample’s composition

Physical Properties of

Matter• Examples of Physical Properties

• Volume• Mass• Buoyancy• Conductivity• Viscosity• Melting point• State of Matter

• Size• Shape• Weight• Density• Boiling point• Length

Physical Properties of

Matter• Extensive properties:• Dependent on the amount of

substance present

Mass

• TWO TYPES OF PHYSICAL PROPERTIES

Physical Properties of

Matter• Intensive properties• Independent of the amount of

substance present

Physical Properties of

MatterPhysical Property

Intensive Property

Extensive Property

Shape Density Length Mass

Chemical Properties of

Matter• The ability or inability of a substance to combine with or change into one or more other substances.

• Are not obvious unless the substance has changed composition

Chemical Properties of

Matter• Examples of Chemical Properties

• Flammability• Combustibility• Reactivity

Physical Changes of Matter

• The ability of a substance to undergo changes that cause the appearance to be different without changing the composition of the substance.

Physical Changes of

Matter• Examples of Physical Changes

• Cut• Tear• Folded• Painted• Dissolve

• Water Cycle• Mixture• Melt• Evaporate

Physical Changes of

MatterMost Physical Changes are REVERSIBLE

Any change between solid, liquid and gas is ONLY

PHYSICAL!!!!

Physical Changes of

Matter

Chemical Changes of Matter

• A process that involves one or more substances changing into a new substances with different composition and different properties

Chemical Change of Matter

• Examples of Chemical Changes

• Gas Production• Color Change• Energy – Absorbed or Released• Not easily reversed• Odor Changes• Oxidized (Rusting)

Chemical Change of Matter

Chemical Changes are Chemical Reactions

Law of Conservation of Mass

• States that mass is neither created nor destroyed during a chemical reaction

Mass reactants = Mass products