Faceoff #11
Saturday, October 10, 2026
Five head-to-heads from this day’s Faceoff. Make your guess, then tap Show answer for the real numbers.
⚛️ Elements
Which is denser, copper or uranium?
copper vs uranium
Show answer
- copper: 8.94 g/cm³
- uranium: 19.1 g/cm³ ✓
uranium: about 2.1× as much
Uranium is one of the densest naturally occurring elements, over twice as dense as copper.
🌍 Countries
In 2019, which country had a larger population?
France vs Vietnam
Show answer
- France: 67.3M people
- Vietnam: 96.2M people ✓
Vietnam: about 43% more
Vietnam's population is nearly 30 million larger than France's.
🏝️ Islands
Which island is bigger: Hispaniola or Newfoundland?
Newfoundland vs Hispaniola
Show answer
- Newfoundland: 109K km² ✓
- Hispaniola: 76.4K km²
Newfoundland: about 42% more
Newfoundland is about 40% bigger than Hispaniola, but Hispaniola, shared by Haiti and the Dominican Republic, has over 20 million people.
👤 Famous People
Who lived longer, Leonardo da Vinci or Isaac Newton?
Isaac Newton vs Leonardo da Vinci
Show answer
- Isaac Newton: 84 years ✓
- Leonardo da Vinci: 67 years
Isaac Newton: 17 years longer
Isaac Newton lived to 84, 17 years longer than Leonardo, and was still running the Royal Mint in his 80s.
🇺🇸 US States
Which state is bigger, Florida or Utah?
Utah vs Florida
Show answer
- Utah: 220K km² ✓
- Florida: 170K km²
Utah: about 29% more
Utah is about 30% bigger than Florida, but has only around a sixth of Florida's population.
Categories in this Faceoff
🌍 Countries · ⚛️ Elements · 👤 Famous People · 🏝️ Islands · 🇺🇸 US States