What shape is the Earth?
It's a sphere.
What does the surface of the Earth consist of?
It's made of rocks and water.
The outside of the Earth is called the ____ structure.
external
The inside of the Earth is called the ____ structure.
internal
The thin outer layer of the Earth is called the ___.
crust
Under the crust is the ___.
mantle
After the mantle, the Earth has an inner and outer ___.
core.
The mantle is made of ___.
magma.
The crust is made of ___.
rocks
The core is made of ___ and ____.
iron and nickel
The crust is a solid, liquid, or a gas?
It's a solid.
The mantle is a solid, liquid, or a gas?
It's molten; it's like a liquid.
The core is a solid, liquid, or a gas?
The outer core is liquid; the inner core is solid.
Magma travels up from the mantle and ___ on the surface of the Earth.
erupts
What is this?
It's a volcano.
Once magma has erupted, it's called ___.
lava.
