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Planets of the Solar System flashcards

The eight planets in order from the Sun, their types and one defining feature each. 30 cards. Tap a card to flip it.

30 cardsSource-checked 2026-10-19

The cards

How this deck was checked

On 2026-10-19, every card was compared with a primary source and with a second source from a different publisher. The comparison was done automatically, not by a teacher, so a card can still be wrong. Flash Feed is not affiliated with any source named here.

Sources

  • Primary source About the Planets (Planets overview) (NASA Science, science.nasa.gov)
  • Primary source Neptune: Facts (NASA Science, science.nasa.gov)
  • Primary source Our Sun: Facts (NASA Science, science.nasa.gov)
  • Primary source What is a Planet? (NASA Science, science.nasa.gov)
  • Primary source Asteroids (NASA Science, science.nasa.gov)
  • Primary source Pluto (NASA Science, science.nasa.gov)
  • Primary source Mercury: Facts (NASA Science, science.nasa.gov)
  • Primary source Venus: Facts (NASA Science, science.nasa.gov)
  • Primary source Earth: Facts (NASA Science, science.nasa.gov)
  • Primary source Mars: Facts (NASA Science, science.nasa.gov)
  • Primary source Jupiter (overview) (NASA Science, science.nasa.gov)
  • Primary source Jupiter: Facts (NASA Science, science.nasa.gov)
  • Primary source Saturn: Facts (NASA Science, science.nasa.gov)
  • Primary source Uranus: Facts (NASA Science, science.nasa.gov)
  • Second source Solar System (Wikipedia, en.wikipedia.org)
  • Second source Dwarf planet (Wikipedia, en.wikipedia.org)
  • Second source Pluto (Wikipedia, en.wikipedia.org)
  • Second source Ceres (dwarf planet) (Wikipedia, en.wikipedia.org)
  • Second source Terrestrial planet (Wikipedia, en.wikipedia.org)
  • Second source Ice giant (Wikipedia, en.wikipedia.org)
  • Second source Gas giant (Wikipedia, en.wikipedia.org)
  • Second source Astronomy 2e, 7.1 Overview of Our Planetary System (OpenStax, openstax.org)
  • Second source Mercury (planet) (Wikipedia, en.wikipedia.org)
  • Second source Venus (Wikipedia, en.wikipedia.org)
  • Second source Mars (Wikipedia, en.wikipedia.org)
  • Second source Jupiter (Wikipedia, en.wikipedia.org)
  • Second source Saturn (Wikipedia, en.wikipedia.org)
  • Second source Uranus (Wikipedia, en.wikipedia.org)
  • Second source Neptune (Wikipedia, en.wikipedia.org)
  • Second source Earth (Wikipedia, en.wikipedia.org)

Found a mistake? Write to [email protected].

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