Assertion: terrestrial planet's material | /r/HasProperty | twice dense
Facets:
value: intrinsically
type: DEGREE
Source sentences:
text: And the density of those cores would be much higher than that of the mantles, because the materials in the core are intrinsically about twice as dense as the rocky materials in the mantle, and with the entire weight of the planet compressing a core, its contents must be compressed in size and increased in density at least as much as the mantle.