Subject - Natural and Processed Materials

Early Years

Substances: Structure, properties and uses
Reaction and change

States of matter

States of matter
The solid state
The liquid state
The gas state
The three states of water - "the water cycle"
Changes in state
Changes in state - melting and freezing
Changes in state - boiling, evaporation and condensation


Talking solutions
Colloids, suspensions and emulsions
Like dissolves like
Soap and detergents

Separation techniques

Separating iron filings, salt and sand
Sedimentation and filtration
Recrystallisation and distillation
Growing crystals

Compounds and Salts

Element, compound or mixture?
Ions and salts
Ionic crystals - salts

Making salts - the rules of electrovalency

NaCl, sodium chloride or common salt

Atomic and molecular theory

Matter and light
The atomic and kinetic theories of matter

Atomic theory - early models

Atomic theory - modern models

Of atoms and elements
From atoms to molecules
Making molecules - the rules of covalency

Chemical change

Physical change or chemical change?

Chemical reactions

Classifying chemical reactions

Reading chemical formulas
Reading chemical equations
Baking soda and vinegar experiment
Acids and bases
Measuring acids and bases
Rates of chemical reactions - mechanisms
Rates of chemical reactions - the five factors


Metals and non-metals
Properties of metals
Refining metals
Iron (Fe)
Gold (Au)
Mercury and heavy metal pollution
Production of iron
Production of aluminium
Corrosion - two case studies: aluminium and iron
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