Vocabulary – Advanced Class Matter Unit 1.3 Week of August 22, 2016

Anything that has mass and takes up space. Matter Anything that has mass and takes up space.

Chemical vs. Physical Change Video https://www.youtube.com/watch?v=BgM3e8YZxuc

crumpling a sheet of aluminum foil melting an ice cube Physical Changes A material may change shapes or forms while undergoing a physical change, but no chemical reactions occur and no new compounds are produced. the identity of the matter does not change. Easier or possible to change back. Examples: crumpling a sheet of aluminum foil melting an ice cube casting silver in a mold breaking a bottle

Chemical Change Examples: burning wood souring milk mixing acid and base digesting food cooking an egg heating sugar to form caramel baking a cake rusting of iron Chemical Change A Material changes and produces a new substance. A new compound (product) results from a chemical change as the atoms rearrange themselves to form new chemical bonds. Difficult or impossible to reverse.

Crash Course Chemical Changes https://www.youtube.com/watch?v=37pir0ej_SE

Precipitate A precipitate is an insoluble solid that emerges from a liquid solution. The emergence of the insoluble solid from solution is called precipitation. Often the precipitate emerges as a suspension.

Precipitation Reactions: Crash Course Chemistry Video https://www.youtube.com/watch?v=IIu16dy3ThI

Reactivity Reactivity in science refers to how various chemicals participate in chemical reactions when they are exposed to other substances.  A chemical that reacts easily with other substances is considered highly reactive. Examples: One example of a reactive material is magnesium, which burns brightly when heated. In contrast, platinum does not burn when heated and it is considered non-reactive. Some chemicals react together so strongly that they create a new substance called a compound. A common example of a compound formed through reactivity is water, formed when hydrogen and oxygen react.

Tarnish A thin layer of corrosion that forms over some metals as their outermost layer undergoes a chemical reaction. Examples: Rust on a Nail Silver that turns dark

Oxidation Oxidation is the process when oxygen combines with an element, changing the appearance of the element. Example: When iron reacts with oxygen and changes to rust, this is an example of oxidation. When an apple turns brown.

Oxidation http://study.com/academy/lesson/what-is-oxidation-definition-process-examples.html

Flammability Flammability is the ability of a substance to burn or ignite, causing fire or combustion.