What Is An Element, Mixture And Compound? | Properties of Matter | Chemistry | F
What Is An Element, Mixture And Compound? | Properties of Matter | Chemistry | FuseSchool
FuseSchool - Global Education · YouTube
Key points
By the end of the lesson the learner can distinguish between an element, a compound and a mixture.
By the end of the lesson the learner can explain what an alloy is and why alloys are made.
By the end of the lesson the learner can give uses of common metals and alloys in Kenya.
Audio narration — reads aloud, works offline
Transcript
[0:00] Matter can be sorted into pure substances and mixtures. Pure substances are either elements or compounds.
[0:40] An element is made of only one kind of atom, like copper or oxygen, and it cannot be broken down by chemical means.
[1:25] A compound forms when two or more elements join chemically in a fixed ratio, like water, which is hydrogen joined to oxygen.
[2:10] A mixture contains two or more substances physically combined but not chemically joined, so the parts can be separated again.
[3:00] An alloy is a special mixture made by combining a metal with one or more other elements to improve its strength, hardness or resistance to rust.
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