Is the Earth made from rock?

Answer 1

The solid mineral aggregates that form the Earth's crust are rock. The plastic like mantle is formed of superheated and partially molten rock. The liquid outer core and the solid inner core are substantially formed of the element iron, along with nickel and some other elements.

Answer 2

No.

1. the crust is solid brittle rock
2. the mantle is solid plastic rock
3. the outer core is liquid metal
4. the inner core is solid metal