Across
- 1. the huge mass in the very centre of the Earth made mostly of iron and nickel. It is divided into an outer core and inner core
- 5. sedimentary rock made of rounded pebbles held in together with a matrix
- 6. a layer of sediment or sedimentary rock
- 7. loose particles of rock or mineral that are the size of gravel larger than pebbles, but smaller than boulders
Down
- 2. sudden release of energy built up in an area on the crust or upper
- 3. a loose rock larger than 256 millimetres (10 inches)
- 4. the solid outermost part of the Earth. The crust is all the land you see and the land on the ocean bottom
- 5. a solid in which the particles are arranged in a pattern to make shapes with flat surfaces