Curriculum
Course: Science — First Preparatory
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Curriculum

Science — First Preparatory

Unit 1: Matter

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Unit 2: Forces

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Unit 3: Life

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Unit 4: Earth and Space

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Text lesson

Matter and Its Properties

Science — First Preparatory

Matter and Its Properties

Pure substances and mixtures

Pure substances and mixtures

  • A pure substance consists of one type of particle, and it is either an element or a compound.
  • A mixture contains two or more substances that are not chemically combined, and each component keeps its own properties.
Comparison aspectMain ideaExampleKeywords
Mixture
  • salt water
  • air
  • or iron filings mixed with sand. Its components can be separated by physical methods
  • filtration
  • evaporation or using a magnet
saltwaterironfilings
Compound
  • water H₂O
  • formed when hydrogen and oxygen chemically combine in a fixed ratio. It cannot be separated into its elements by simple physical methods
—waterformedhydrogenoxygen
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