作者:Shana Beggs 12 年以前
358
Concepts and ideas
Concepts and ideas
Neutralisation
Acids
Alkalis
Bases
Atoms
Surface Area
Neutron
Negative
Reactivity
Proton
Postive
Electron
Recyclig
Soap
Detergents
Plastics
Oxidation
Process
Rusting
Periodic Table
Concrete
elements
Hydroxide
Metals
Hydrogen
Carbon
Fossil Fuels