Minerals
The surface color of a mineral?
What is color.
Rocks are usually made of one or more ________.
What are minerals.
Igneous rocks form from the cooling of ________ or ________.
What is magma or lava.
List 2 examples of sediment.
What are sand, pebbles, soil, bones, shells, etc.
The word metamorphic means "_______ of form."
What is CHANGE
When you perform a scratch test and use a scale from 1-10, you are testing the mineral's ______.
What is hardness.
List the three MAIN types of rocks.
What are igneous, sedimentary, and metamorphic.
Intrusive igneous rocks from MAGMA have large visible ____________.
What are CRYSTALS.
This type of sedimentary rock forms when plant or animal matter is deposited in layers. Ex: coal
What is ORGANIC
Metamorphic rocks form when older rocks are exposed to __________ and/or ___________.
What is HEAT AND/OR PRESSURE
The way light is reflected from a mineral's surface.
What is luster.
This is a series of processes that occur on Earth's surface and in the crust and mantle that slowly change rocks from one type to another.
What is the ROCK CYCLE.
_____________ igneous rocks have tiny crystals (fine-grained) or no crystals at all (glassy).
What is EXTRUSIVE.
This type of sedimentary rock forms when rock fragments are pressed together. Ex. sandstone
What is CLASTIC
This type of metamorphic rock has parallel bands of minerals. Ex. gneiss
What is FOLIATED
The color of a mineral's powder when rubbed on a tile.
What is streak.
This process in the rock cycle changes rock into sediment.
What is WEATHERING.
This type of sedimentary rock forms when dissolved minerals crystallize and collect in layers. Ex. Halite
What is CHEMICAL
This type of metamorphic rock does NOT have parallel bands of minerals. Ex. marble
What is NONFOLIATED
A mineral is: 1. Naturally occurring 2. __________ 3. Solid 4. __________ 5. Definite chemical composition
What is Inorganic and Crystal Structure.
Scientists classify rocks by their: 1. Mineral composition (color) 2. ___________ 3. ___________
What is texture and origin.
Name the most common extrusive and intrusive igneous rocks.
What are basalt and granite.
The processes that form sedimentary rocks are: 1. Weathering and Erosion 2. ___________ 3. Compaction 4. ___________
What is DEPOSITION AND CEMENTATION
What condition would cause an older rock to be exposed to intense heat or pressure?
What is collision of tectonic plates or magma rising through Earth's crust.