Separating mixtures
I can describe what mixtures are and list methods used to separate them.
Separating mixtures
I can describe what mixtures are and list methods used to separate them.
Lesson details
Key learning points
- A mixture consists of two or more elements and/or compounds not chemically combined together
- Chemical properties of each substance in a mixture remain unchanged
- There are multiple physical processes for separating mixtures
- Melting point data can be used to distinguish between pure substances and mixtures
Keywords
Mixture - A mixture is a material that contains two or more different substances that can be physically separated.
Separate - In chemistry, to separate something is to extract and isolate a substance from a mixture.
Property - A property is a feature or characteristic of a substance that can be used to classify it or describe how it behaves.
Common misconception
Pupils mistake common (everyday) usage of pure (i.e. pure orange juice) as being a pure substance when it is, in fact, a mixture.
'Everyday' usage refers to one source whereas scientific usage refers to particle composition.
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
A material with two or more different substances physically combined.
To extract and isolate a substance from a mixture.
A feature or characteristic of a substance.