1. Matter Unit 1.3 Week of August 22, 2016
Vocabulary – On-level
Matter Unit 1.3 Week of August 22, 2016

2. crumpling a sheet of aluminum foil melting an ice cube
Physical Changes
A change in a substance that does not change its identity.
It is still the same substance after a change.
Examples:
crumpling a sheet of aluminum foil
melting an ice cube
casting silver in a mold
breaking a bottle

3. Examples:
burning wood
mixing acid and base
digesting food
cooking an egg
baking a cake
rusting of iron
Chemical Change
A Change in which one or more substances combine or break apart to form a new substance.

4. Chemical vs. Physical Change Video

5. Precipitate
A solid that forms from a solution during a chemical reaction.

6. Precipitate Example Video

7. Reactivity
The ease and speed with which an element combines, or reacts, with other elements and compounds.

8. 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

9. 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.

10. Oxidation

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