What is today's atmosphere made of?

How is igneous rock formed?
How is sedimentary rock formed?
How is metamorphic rock formed?

reasons for and against a quarry!

2 things that Calcium carbonate neutralize!

what are the tests for:
- carbon dioxide
- oxygen
- hydrogen
-chlorine

name 2 jobs of hydrochloric acid in your stomach

name 6 bases!

acid + base ----> salt + water

what is electrolysis?

uses of chlorine (cl)
(3 uses)

top 5 most reactive & extraction method

second most reactive & extraction method

least reactive & extraction method

what is an ore?

what is an alloy?

why are alloys stronger than non alloys?

what is a smart material? give an example.

what are hydrocarbons?

order of fractioning & uses

what is complete & incomplete combustion?

how CO² levels can be reduced (2)

what are the 2 families of hydrocarbons?

what is cracking?

how do we identify alkanes & alkenes ?