Key Definitions
Individual crystals of all the same stuff
What is a mineral?
The slow process of the breaking down of rocks
What is weathering?
Molten rock within the earth
What is magma?
Type of rock form when changed from another type of rock
What is metamorphic rock?
Changes a rock into a sedimentary rock
What is weathering and erosion?
A combination of minerals
What is a rock?
The removal or transportation of soil, weathered rock materials or pieces of rock
What is erosion?
Molten rock out of the earth
What is lava?
Change the minerals in the rocks to new types and shapes
What is pressure?
Changes a rock into a metamorphic rock
What is heat and pressure?
Type of rock cooling within a volcano
What is "intrusive"?
Material produced by weathering and erosion
What is sediment?
Dark, hard, have crystals too small to see, and may contain bubbles
What is features of igneous rocks formed at the surface?
Change the minerals in the rocks to new types and shapes
What is heat?
Changes a rock into an igneous rock
What is melting?
Type of rock cooling outside of a volcano
What is "extrusive"?
Evidence of past life
What are fossils?
Lighter, hard, and contain a variety of large crystals
What is features of igneous rocks formed under ground?
The process of change in rocks
What is metamorphism?
Brings sediment closer together
What is compacting?
Must be solid, must occur naturally, made of non-living material, has a definite chemical formula and has a crystal structure
What are the five main criteria for being a mineral?
When grains of sediment form a solid rock
What is cementation?
Ignition and ignite
What is two other words that begin with "ign" that relate to fire?
Causes minerals to line up in one direction
What is high pressure and heating?
After compaction, this causes the sediments to be forced together
What is cementation?