Across
- 5. The rock beneath the Earth's surface is sometimes heated to high enough temperatures that it melts to create magma.
- 12. process by which dissolved minerals crystallize and glue particles of sediment together into one mass.
- 14. a solid inorganic substance occurring in nature ยท rock.
- 16. The process by which dissolved minerals crystallize and glue particles of sediment together into one mass.
- 18. type of extrusive igneous rock, created from lava that cools so quickly that no crystals can form on its surface.
- 19. of leaves, shells, insects, or other items left in rock.
- 20. the look and feel of a rock's surface determined by the size, shape and pattern of a rock's grains.
Down
- 1. the tendency of a rock to break along certain planes of weakness, often Igneous magmatic rock is one of the three main rock types, the others being sedimentary and metamorphic.
- 2. rocks are types of rock that are formed by the accumulation or deposition of sediments, ie. mineral or organic particles, at Earth's surface.
- 3. an aphanitic extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron exposed at or very near the surface of a rocky planet or moon.
- 4. The term used to describe metamorphic rocks that have grains arranged in parallel layers or bands.
- 6. refers to the mode of igneous volcanic rock formation in which hot magma from inside the Earth flows out onto the surface as lava or explodes violently into the atmosphere to fall back as pyroclastics or tuff.
- 7. weathering the process of rocks breaking down into smaller fragments without any changes to their chemical composition.
- 8. Foliated lack a platy or sheet-like structure, unlike their foliated counterparts.
- 9. to foliation
- 10. the process by which sediments are pressed together under their own weight.
- 11. weathering the process where rocks and minerals are broken down by chemical reactions, altering their composition and often creating new minerals.
- 13. A rock type that forms from an existing rock that is changed by heat, pressure or chemical reactions.
- 15. formed when magma penetrates existing rock, crystallizes, and solidifies underground to form intrusions.
- 17. the process by which sediments, soil, and rocks are laid down or accumulated in a new location, often forming new landforms or modifying existing ones