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WikiCards · Card list · Science cards · Earth's inner core
Uncommon card · Science
Earth's inner core, an Uncommon card
Earth's inner core is the innermost geologic layer of the planet Earth.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 79
- DEF
- 84
- Power
- 163
- Wikipedia reads a year
- 170,000
Power 163 (ATK + DEF): stronger than 85 % of WikiCards cards.
Earth's inner core quiz: 3 questions
Three questions on the Earth's inner core card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
There are no samples of the core ______ for direct measurement, as there are for Earth's mantle.
Answer
accessible. There are no samples of the core accessible for direct measurement, as there are for Earth's mantle. From the Earth's inner core article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Cavalry. Cavalry 90 · Loudspeaker 84 · Earth's inner core 79 · Grumman F9F Panther 74 ATK in WikiCards.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- It is primarily a solid ball with a radius of about 1,230 km, which is about 20% of Earth's radius or 70% of the Moon's radius.
- As recently as February 2025 there are indications that the previously believed solid iron-nickel sphere is partially deformable and undergoing viscous changes.
- There are no samples of the core accessible for direct measurement, as there are for Earth's mantle.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Earth's inner core article was read about 170,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 79 and blocks with 84: each hit it takes is cut by 34 %.
How to get Earth's inner core
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Earth's inner core in the power ranking, all domains together.
- Ludwig Mies van der RoheUncommon · Arts · ATK 77 DEF 86
- Plastic surgeryUncommon · Science · ATK 81 DEF 82
- CavalryUncommon · History · ATK 90 DEF 73
- Primo LeviUncommon · History · ATK 81 DEF 82
- African PygmiesUncommon · Science · ATK 78 DEF 85
- ArgonauticaUncommon · Arts · ATK 84 DEF 79
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Earth's inner core (revision), CC BY-SA 4.0. Photo : IsadoraofIbiza, CC BY 3.0, Wikimedia Commons.
