Demo #1: Tearing Paper Does the paper change its chemistry (chemical identity) and form a new substance with different properties? Is the ability to be torn a physical or chemical property? –Physical Property: Property that can be tested/observed without changing chemical identity of the substance; can be undone Is tearing a physical change or a chemical change?

Demo #2: Burning Paper Does the paper change its chemistry (chemical identity) and form a new substance with different properties? Is the ability to burn a physical or chemical property? –Chemical Property: A property that can only be tested/observed by changing the chemical identity of a substance; hard to undo Is burning a physical change or a chemical change?

Adhesion- tendency of particles of different substances to attract to one another (__.P)

Boiling/Condensation Point- Temperature at which a liquid turns to gas AND Temperature at which a gas turns to a liquid (__.P)

Brittleness- The tendency of a solid to break or shatter (__.P)

Cohesion- The tendency of particles of the same substance to attract one another (__.P)

Density- Mass per unit volume; the mass of a known volume of matter; compactness (__.P)

Ductility- The ability to be stretched into wire— this is a property of metals (__.P)

Elasticity- The tendency of a solid substance to return to its original form after being stretched (__.P)

Electrical Conductivity- The ability of electricity to move through a material. (__.P)

Hardness- Ability of solids to resist being scratched. (__.P)

Luster- The “shininess” of a substance. The ability of a substance to reflect light. (__.P)

Magnetism- The ability to form a magnetic field and attract other metals (__.P)

Malleability- The ability to be pounded into flat sheets—this is a property of metals (__.P)

Mass- The amount of matter that something is made of. (__.P)

Melting/Freezing point- Temperature at which a solid turns to liquid AND Temperature at which a liquid turns to solid (__.P)

Solubility- The ability to dissolve in another substance—how well the substance dissolves. (__.P)

States of Matter- The physical form in which a substance exists, such as a solid, liquid, gas, or plasma. (__.P) Plasma 

Surface Tension- Tendency of liquid particles to stick together, forming a “skin” (__.P)

Tensile Strength- a measure of how far something will stretch or bend before it cracks or breaks (__.P)

Texture- The smoothness or roughness of a substance (__.P)

Thermal Conductivity- The ability to transfer thermal energy (heat) from one area to another (__.P)

Viscosity- A liquid’s resistance to flow (__.P)

Volume- The amount of space an object occupies (__.P)

Ability to Burn (Flammability)- Ability of a substance to support combustion (burn) (__.P)

Ability to Rust- Ability of a metal (like iron) to bond with oxygen (from air or water) to form a new substance (__.P)

Ability to Corrode- Ability of a substance to break down and form a new material when reacting with its environment—water, acid, salt, etc. (similar to rusting) (__.P.)