Separating mixtures (including formulations)
I can describe what mixtures are and list methods used to separate them.
- Year 10
- AQA
Separating mixtures (including formulations)
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.
- A formulation is a designed mixture, with each component serving a specific purpose.
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.
Formulation - A formulation is a designed mixture, with each component serving a specific purpose in the desired product.
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 (e.g. 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.
Equipment
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.In chemistry, what distinguishes a compound from an element?
Q2.Order the states of matter from most to least freedom of movement:
Q3.Which is only a characteristic of a chemical change (compared to a physical change)?
Q4.What defines an element in chemistry?
Q5.What property measures how much matter is in a substance?
Q6.In chemistry, chemicals refer to substances that only contain one type of fundamental unit, like an atom or molecule.
Assessment exit quiz
6 Questions
Q1.Match the following terms with their correct definitions.
