Across
- 2. a combination of 2 or more minerals which have been joined either by heat-temperature, pressure or chemical changes.
- 3. molten rock that flows out onto the earths surface
- 7. a non living,solid material with particles arranged in a repeating pattern clawed a crystal. a mineral is usually a combination of 2 or more elements.
- 9. molten rock that is located beneath the earths surface.
- 11. rock rock formed from rocks types that have weathered, cemented =,and squeezed together
- 13. layers, or brands, in rocks
- 15. the huge mass in every centre of the earth made mostly of iron and nickel. it is divided into an outer core and inner core
- 16. a solid in which the particles are arranged in a pattern to make shapes with flat surfaces
- 17. fine-grained material surrounding larger grains in sedimentary rock
- 18. all sedimentary particles larger than 2 millimetres is called_________. _________ is subdivided into pebbles, cobbles and boulders.
- 19. loose particles of rock or mineral that range in size from 2-64 millimetres in diameter. pebbles are the smallest type of gravel
Down
- 1. melted
- 4. igneous rock that forms when magma cools on the earths surface
- 5. something that has lasted from a living thing that died long ago. they can be body parts, that have turned into stone or animal tracks
- 6. soft rock formed from layers of mud soil-very small weathered fragments of rock mixed with decaying plant or animal material
- 8. the solid outermost part of the earth. the crust is all the land you see and the land on the ocean bottom.
- 9. the thick layer of very hot, melted rock between the crust and the core of the earth
- 10. the braking of rocks by water, snow, ice, wind, chemicals, gravity or plant roots
- 12. a scientist who studies the identification, properties, and distribution of minerals
- 14. loose particles of rock or mineral that range in size from 0.0625-2.0 millimetres in diameter