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? Copyright © McGraw-Hill Education Properties of Matter

Properties and Changes Matter Properties and Changes Front Cover

Matter Anything that has mass and 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.

States of Matter Solids Liquid Gas 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 Copyright © McGraw-Hill Education

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 TWO TYPES OF PHYSICAL PROPERTIES Extensive properties: Dependent on the amount of substance present Mass

Physical Properties of Matter Intensive properties Independent of the amount of substance present

Physical Properties of Matter Physical 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

Any change between solid, liquid and gas is ONLY PHYSICAL!!!! Physical Changes of Matter Most 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