Warm-Up What is matter? 2 complete sentences (or more) You can also write what is NOT matter!

Properties of Matter

What is a Property? Property – characteristic that enables us to distinguish one kind of matter from another

Physical Properties A physical property can be observed or measured without changing the identity of the substance Examples:

Extensive Properties Extensive – depends on the amount of matter present Examples: Mass, volume EXtra substance is need to increase EXtensive properties

Intensive Properties Intensive – does NOT depend on the amount of matter present Examples: Color, temperature, density, solubility

Chemical Properties A chemical property refers to the ability of a substance to combine with or change into one or more other substances Examples: These properties cannot be observed without changing the substance!

New Vocabulary… Quantitative – a numerical description of a substance Qualitative – a description of a substance that does NOT include a number

…And There’s More… Solubility – the maximum amount of solute that will dissolve in a given amount of solvent at a given temperature and pressure Stability – the tendency of a material to resist change or decomposition

…Last Two! State/Phase of Matter – the physical forms in which all matter naturally exists on Earth Density – a ratio that compares the mass of an object to its volume Density of water = 1 g/mL

Physical Changes Physical Change – a change in a property of matter that does NOT result in a change in identity of the substance Examples:

Chemical Changes Chemical Change – a change in which the composition and properties of a substance change, altering the identity of the substance (also called a chemical reaction) Examples: Rust--- Iron + oxygen  Iron oxide

Evidence Formation of a gas or precipitate Change in color Change in temperature Change in odor

Law of Conservation of Mass Mass is neither created nor destroyed during a chemical reaction; it is conserved Antoine Lavoisier Example: https://www.youtube.com/watch?v=_Y1alDuXm6A

Game Time! Stations 5 & 6 Stations 1 & 2 Stations 3 & 4 Stations 7 & 8

If you don’t have any, I will  Questions? If you don’t have any, I will 