Structure of the Earth

The land surface of the Earth accounts for 1% of its total volume. Travel from the core to Earth's surface, examining the layers that make up our planet. Earth Science - Geology - Learning Points. The Earth is made up of four layers. The Earth's solid inner core is surrounded by a liquid outer core. Above the outer core is the mantle, made up of solid and molten rock 3000 km deep. The Earth's crust is broken into seven moving pieces called tectonic plates. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.