Classifying Rocks
Someone who classifies or studies rocks.
What is a geologist?
Where the word Igneous comes from.
What is Greek for "fire'?
Small, solid pieces of material that come from rocks or living things.
What is sediment?
These two things change igneous and sedimentary rocks into metamorphic rocks.
What are heat and pressure?
The diagram that shows how each type of rock can become or change into another.
What is the rock cycle diagram?
One way to classify a rock.
What is color, mineral composition, or texture?
What is extrusive rock?
Running water, wind, or loose ice that carry away fragments of rock.
What is erosion?
Metamorphic rocks that have their grains arranged in parallel layers or bands.
What are foliated rocks?
The grain shape that is not rounded.
What is jagged grain?
Particles of minerals or other rocks are called this.
What are grains?
Igneous rock that formed when magma hardened beneath Earth's surface.
What is intrusive rock?
When minerals that are dissolved in a solution crystallize.
What are chemical sedimentary rocks?
Granite changes into this metamorphic rock.
What is gneiss?
What is 20?
The larger of the two visible grain types is called this.
What is coarse grained?
Obsidian has this type of grain size.
What is none?
When rock fragments are squeezed together.
What are clastic sedimentary rocks?
Metamorphic rocks that the grains are not arranged in bands or layers.
What is nonfoliated?
This mineral is one of the three that makes up many types of rocks.
What are mica, quartz, and feldspar?
Gneiss is said to be this, because it has a striped grained pattern.
What is banded or foliated?
Three ways igneous rocks are used or have been used by people.
What is tools, building materials, weapons, countertops, cleaning and polishing, and starting vegetable seeds.
Where the remains of plants and animals are deposited in thick rock layers.
What are organic sedimentary rocks?
The Lincoln Memorial is made of this metamorphic rock.
What is marble?
This type of molten rock comes from under the Earth's surface.
What is magma?