Density, solubility, susceptibility to magnetisation and colour
Boiling temperature
Sublimation
Heterogeneous mixtures
Homogeneous mixtures
Evaporation
Differential settling and decanting
Melting out and magnet separation
Refining of rock salt by boiling
Separation of non-miscible liquids
Extraction
Separation of substances by shaking
Chromatography
Detection of dissolved solids in different water samples
Detection of dissolved gases in Trinkwasser
Solutions, colloids and suspensions
Saturated solutions
Determination of solubility
Water dissociation and water synthesis
Media for water detection
Importance of air for combustion processes
Investigation of the air
Oxygen – generation, detection and properties
Carbon dioxide – generation, detection and properties
Carbon dioxide – applications (fire extinguisher)
Hydrogen – generation and properties
Production of detection agents for acids (and bases)
Effect of indicators on acids
Carbonic acid
Caution when handling bases!
Effect of indicators on bases
Sodium hydroxide solution and its properties
Production of bases by the reaction of metals with water
Salt formation by neutralisation
Salt formation by the reaction of base metals with dilute acids
Salt formation by the reaction of metal oxides with acids
Formation of salts by precipitation reactions
Growing crystals
Freezing mixtures
The behaviour of metals when they are heated
The causes of the changes to metals when they are heated
Even metals will burn
Rusting (rusting as an oxidation process)
Protection against rusting by hot-dip tin plating and dip-galvanizing
Changes to the properties of steel on heat treatment
Soldering
Silver mirror
Production of charcoal
Activated charcoal
Sulfur – properties (allotropes)
Iodineine and its properties