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Education Concept Tracker

A prerequisite knowledge graph of 1590 learning concepts across 8subjects. Track what you've mastered and see exactly what you're ready to learn next — the topics whose prerequisites you've already met. Built on the Marble Open Skill Taxonomy.

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Knowledge-graph map

Computing
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Properties of materials

Science · Earth's Systems · conceptual

Compare and group different kinds of rocks based on their appearance and simple physical properties such as hardness, texture, and colour

What mastery looks like

  • Describe at least three observable properties of rocks: hardness, texture, colour, grain size
  • Sort a collection of rocks into groups based on chosen properties
  • Compare two rocks and describe how their properties differ

Check your understanding

Can Properties of materials examine a collection of rocks and sort them by whether they're hard or crumbly, rough or smooth, and light or dark?