10.2 Physical Properties October 1, 2015 Add the new notes to your table of contents, and then turn to the next clean page and set up your title and date

Lesson 2-1 The arrangement of atoms determines: –whether matter is a substance or a mixture –as well as the properties of different types of matter Each element and compound has a unique set of properties. You can observe some properties of matter, and other properties can be measured. Physical Properties

Lesson 2-1 A physical property is a characteristic of matter that you can observe or measure without changing the identity of the matter.physical property Solids, liquids, and gases are called states of matter. The state of matter is a physical property. Every solid, liquid, and gas around you is made up of moving particles that attract one another. Physical Properties States of Matter Add “physical property" to our index before moving forward

States of Matter – Tape in

Lesson 2-1 Solids, Liquids, and Gases

Lesson 2-1 Some physical properties of matter vary depending on how much matter there is in an object. These properties are size-dependent, meaning their values depend on size. –for example an apple pie will have a different mass, and volume- once a slice has been removed –a piece of paper will have a different mass and volume once it is torn Size-Dependent Properties

Lesson 2-1 Mass is the amount of matter in an object.Mass Mass is sometimes confused with weight. –Weight is the pull of gravity on matter Volume is the amount of space something takes up. Mass and volume are size-dependent properties of matter because their values depend on the size of a sample. Size-Dependent Properties Add “mass" “volume” and “size-dependent properties” to our index before moving forward

Lesson 2-1 Unlike mass, weight, and volume, some physical properties of a substance do not depend on the amount of matter present. These properties are the same for both small samples and large samples – they are called size-independent properties. Size-Independent Properties

Lesson 2-1 Melting point and boiling point are examples of size-independent properties—meaning regardless of the sample size, the MP and BP will not change –The temperature at which a substance changes from a solid to a liquid is its melting point. –The temperature at which a substance changes from a liquid to a gas is its boiling point. Size-Independent Properties

Lesson 2-1 The boiling point of water is 100°C at sea level. The boiling point does not change for different volumes of water.

Lesson 2-1 DensityDensity is the mass per unit volume of a substance. Size-Independent Properties (cont.) Formula for Density Add “density" to our index before moving forward

Lesson 2-1 Conductivity: –Electrical conductivity is the ability of matter to conduct, or carry along, an electric current. –Thermal conductivity is the ability of a material to conduct thermal energy. Solubility is the ability of one substance to dissolve in another. Size-Independent Properties (cont.)

PropertyMassConductivityVolume Boiling/Melting Points State of MatterDensitySolubilityMagnetism Size- dependent or size independent Size- dependent Size- independent Size- dependent Size-independent Description of property The amount of matter in an object The ability of matter to conduct, or carry along electricity or heat The amount of space something takes up The temperature at which a material changes state Whether something is a solid, liquid, or a gas The amount of mass per unit of volume The ability of one substance to dissolve in another Attractive forces for some metals, especially iron How the property is used to separate a mixture (example) Mass typically is not used to separate mixtures Conductivity is typically not used to separate mixtures Volume could be used to separate mixtures whose parts can be separated by filtration Each part of a mixture will boil or melt at different temperatures A liquid can be poured off a solid Objects with greater density sink in objects with less density Dissolve a soluble material to separate it from a material with less solubility Attract iron from a m mixture of materials

Lesson 2-1 The substances that make up mixtures are not held together by chemical bonds. When substances form a mixture, the properties of the individual substances do not change. One way that a mixture and a compound differ is that the parts of a mixture can be separated by physical properties. Using Physical Properties to Separate Mixtures

Lesson 2-1 The parts of a mixture often can be separated by physical properties. Physical properties can only be used to separate the physically blended parts of a mixture, they cannot be used to separate a compound into the elements it contains.

Lesson 2 - VS A physical property is a characteristic of matter that can be observed or measured without changing the identity of the matter. Examples of physical properties include mass, density, volume, melting point, boiling point, state of matter, and solubility.

Lesson 2 - VS Many physical properties can be used to separate the components of a mixture.

Lesson 2 – LR1 A.size-dependent properties B.size-independent properties C.physical properties D.density Which term refers to properties that are the same for both small samples and large samples?

Lesson 2 – LR2 A.solubility B.mass C.density D.boiling point Which is the ability of one substance to dissolve in water?

Lesson 2 – LR3 A.density B.mass C.physical property D.volume Which refers to the amount of space something takes up?