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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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The Eight Planets

Science · Space Exploration · conceptual

Name the eight planets in order from the Sun (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune), know that Pluto is a dwarf planet, and distinguish rocky inner planets from gas giant outer planets

What mastery looks like

  • List all eight planets in order from the Sun
  • State that Pluto was reclassified as a dwarf planet in 2006
  • Explain that the four inner planets are small and rocky while the four outer planets are large gas giants

Check your understanding

Can The Eight Planets list all eight planets in order from the Sun — maybe using a memory trick like 'My Very Eager Mother Just Served Us Nachos'?