What is a Precipitation Reaction (solid formation)?

What is an Acid-Base Reaction (proton transfer)?

What is a CFC (ozone depleting chemical)?

What is Ozone Depletion (ozone layer thinning)?

What is the Ozone Layer (UV protection)?

What is the Greenhouse Effect (atmospheric warming)?

What is Global Warming (earth's temperature rise)?

What is an Ideal Fuel (efficient fuel)?

What is Ignition Temperature (minimum burning temperature)?

What is Calorific Value (heat energy per unit mass)?

What is a Fuel (energy source)?

What is a Flame (gaseous combustion)?

What is Combustion (burning reaction)?

What is a Fossil Fuel (ancient organic matter)?

What is Cracking (large molecule breakdown)?

What is Fractional Distillation (petroleum separation)?

What is Coal (fossil fuel)?

What is Natural Gas (fossil fuel)?

What is Petroleum (fossil fuel)?

What is a Natural Fibre (plant/animal fibre)?

What is a Synthetic Fibre (man-made fibre)?

What is Thermosetting Plastic (non-re-meltable plastic)?

What is Thermoplastic (re-meltable plastic)?

What is Polymerization (monomer joining)?

What is a Monomer (polymer building block)?

What is a Polymer (large molecule)?

What is Isomerism (same formula, different structure)?

What is an Unsaturated Hydrocarbon (double/triple bonds)?

What is a Saturated Hydrocarbon (single bonds only)?

What is an Alkyne (triple bonded hydrocarbon)?

What is an Alkene (double bonded hydrocarbon)?

What is an Alkane (single bonded hydrocarbon)?

What is a Functional Group (organic chemistry)?

What is an Ester (organic compound)?

What is Saponification (soap making)?

What is Micelle Formation (soap/detergent action)?

What is a Detergent (synthetic cleaning agent)?

What is a Soap (fatty acid salt)?

What is Permanent Hardness of Water (non-removable hardness)?

What is Temporary Hardness of Water (removable hardness)?

What is Soft Water (low mineral water)?

What is Hard Water (mineral-rich water)?

What is Hygroscopy (absorbing moisture without dissolving)?

What is Deliquescence (absorbing atmospheric moisture)?

What is Efflorescence (loss of crystal water)?

What is Water of Crystallization (water in crystals)?

What is a Neutral Oxide (neither acidic nor basic)?

What is an Acidic Oxide (acid forming oxide)?

What is a Basic Oxide (base forming oxide)?

What is an Amphoteric Oxide (acid and base properties)?