Hazard SymbolsHazard SymbolsHazard SymbolsHazard Symbols

Hazard Symbols

1. There are three states of matter – solids, liquids and gases

2. When a substance changes state, the particles gain or lose energy

3. Melting – solid into liquid (gain)4. Freezing – liquid into solid (lose)5. Boiling – liquid into gas (gain)6. Condensing – gas into liquid (lose)

Changes of stateChanges of stateChanges of stateChanges of state

Changes of state

Changes of State - WarmingChanges of State - WarmingChanges of State - WarmingChanges of State - Warming

Changes of state - warming

Changes of State - CoolingChanges of State - CoolingChanges of State - CoolingChanges of State - Cooling

Changes of state - cooling

1. An element is a substance which contains only one type of atom

2. A compound is a substance in which two or more atoms are chemically joined together

3. A mixture contains two or more elements or compounds that are not chemically joined together.

Element, Compound, MixtureElement, Compound, MixtureElement, Compound, MixtureElement, Compound, Mixture

Element, Compound, Mixture

Element, Compound, MixtureElement, Compound, MixtureElement, Compound, MixtureElement, Compound, Mixture

Element, Compound, Mixture

1. The substances in mixtures can be separated physically; compounds cannot be broken down physically

Separation TechniquesSeparation TechniquesSeparation TechniquesSeparation Techniques

Separation Techniques

DistillationDistillationDistillationDistillation

Distillation

ChromatographyChromatographyChromatographyChromatography

Chromatography

Separating Sand and SaltSeparating Sand and SaltSeparating Sand and SaltSeparating Sand and Salt

Separating Sand and Salt

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