Presentation on theme: "Physical and Chemical Properties of Matter"— Presentation transcript:
1Physical and Chemical Properties of Matter Objective: Students will classify matter by physical and chemical properties and identify changes in matter.
2Matter is EVERYWHERE and is found in different forms as solids, liquids and gases.
3When we examine a substance, we are interested in its properties When we examine a substance, we are interested in its properties. A property issomething about a substance that can help to define it.Properties can beboth physical andchemical.
4Properties of matter are both PHYSICAL and CHEMICAL
5PHYSICAL PROPERTIESPhysical properties are thing about matter that can be observed without changing the substance into a different substance. There are many different physical properties that can be observed.H2O
6Examples of Physical Properties Color – GoldAuGOLDDensity g/cm3
7PHYSICAL PROPERTIES:GOLDMetal- STATE (solid, liquid or gas)
9GOLD PHYSICAL PROPERTIES: Malleable- Bendable-forms into thin sheet Conductivity- Conducts heat and electricityDuctile- stretched into wire
10PHYSICAL PROPERTIES:Soluble: to dissolve(without fizzing or bubbling!)
11Examples of Physical Changes Size changeShape change
12Examples of Physical Changes State changeSolid liquid gas
13When a physical change occurs, the chemical composition of that substance DOES NOT CHANGE? THE MATTER basicallySTAYS THE SAMEAuAuAu
14Iron + Oxygen = Rust 4Fe + 3O2 = 2Fe2O3 CHEMICAL PROPERTIES Chemical properties are characteristics of a substance that are observed when it REACTS or changesto produce differentsubstances.Iron Oxygen = Rust4Fe O = 2Fe2O3
15Examples of Chemical Properties Reaction to…….. WATEROXYGENCHEMICALS
18Iron + Oxygen = Rust 4Fe + 3O2 = 2Fe2O3 When matter undergoes a CHEMICAL CHANGE the atoms in the original substance are rearranged and producenew substances thatare structurally differentthan the original matter.Iron Oxygen = Rust4Fe O = 2Fe2O3
19FIZZING and BUBBLING Signs that matter is undergoing a chemical change:Giving off HEAT/SMOKEFIZZING and BUBBLING