Assertion: heavy water's density | /r/CapableOf | rise to peak
Facets:
value: at 3.98 °c
type: TEMPORAL
Source sentences:
text: The density varies with temperature, but not linearly: as the temperature increases, the density rises to a peak at 3.98 °C (39.16 °F) and then decreases; this is unusual.[d] Regular, hexagonal ice is also less dense than liquid water—upon freezing, the density of water decreases by about 9%.[e]