Which way would magma flow if we'd cut the Earth (in half)?

Question

Would it go up or down and what would happen with earth crust?

Answer 1

if the two halves were separated a fair way apart, then the magma would either stay with it's half of the earth (due to the gravitational pull of the half-earth) or flow towards the sun, which has a strong gravitational pull

however, if they're not drawn apart, chances are the earth would sort of join back together, like two magnets that you separate across a small distance