Chapter 01 of 5
The Buoyancy Paradox
Why does solid H2O defy the laws of physics and float?
- Physical Law
The Universal Rule
In nearly every substance, atoms pack closer together as they freeze. This makes the solid state denser and heavier than the liquid.
- The Anomaly
Water's Defiance
Water is one of the only known substances where the solid form is lighter than the liquid. It expands when it turns to ice.
- Scale
The Titanic Illusion
Because ice is roughly 9% less dense than liquid water, a massive iceberg stays afloat. Most of its bulk remains hidden beneath the surface.
17 more cards in this chapter
Could you answer this?
At what temperature does liquid water reach its maximum density before it begins to expand?
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🧊 Why Ice Floats
- 01The Buoyancy ParadoxWhy does solid H2O defy the laws of physics and float?
- 02The Geometry of ColdDiscover the molecular architecture of the hexagonal lattice.
- 03Life Under the LidThe 4°C density maximum and the secret to winter survival.
- 04Exotic Ices & Deep PressureHot ice and extraterrestrial forms beyond the Earthly norm.
- 05The Molecular MastermindHow a 104.5-degree angle dictates the fate of the biosphere.