What were they talking about again, Nutella? Ella nommed on some chocolate grumpily and listened for a bit, occasionally taking down some notes. She was familiar with the inner and outer planets but not their technical names. Terrestrial and Jovian, okay. Then the blonde carefully wrote each planet under the correct title and glanced up again at Old man Pluto hater, wondering what his next question would be.

Why rocky inners vs. gassy outers? Ella sat quietly and considered this for a while. "Doesn't it have to do with gravity?" Possibly, yeah? "I mean, the outer planets have more mass so they have more um...of a gravitational field thing? And if gas is attracted by the gravity, the outer planets would have more?"

... .... ...Yeah. Hopefully that made sense. She was just going to have more chocolate now.