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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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Living, Dead & Never Alive

Science · Ecosystems & Habitats · conceptual

Explore and compare the differences between things that are living, dead, and things that have never been alive

What mastery looks like

  • Sort a collection of objects into three groups: living, dead (was once alive), never alive
  • Give reasons for each sorting decision (e.g. 'the leaf was on a tree so it was alive once')
  • List characteristics of living things such as growing, breathing, reproducing, and moving

Check your understanding

If you show Living, Dead & Never Alive a rock, a fallen leaf, and a caterpillar, can they tell you which is alive, which was once alive, and which was never alive?