We categorize the types of rocks into this many different types.
What is three?
100
This word is what the S in SNIFE stands for.
What is Solid?
200
The solid, dense, innermost layer of the earth.
What is the inner core
200
The area on earth that has the most volcanic activity.
What is the Ring of Fire?
200
These waves do the most damage but take the longest to arrive on seismograph readings.
What are surface waves?
200
This type of rock means literally "formed by fire"
What is Igneous?
200
As magma cools over time it forms these geometric structures.
What are crystals?
300
The thickest layer of the earth, made up of three distinct layers.
What is the mantle?
300
These volcanoes are wide and sloping and not very tall.
What are shield volcanoes?
300
This machine records seismic activity by suspending a mass with a marking tool above a drum. The drum moves with the seismic waves and the wave pattern is drawn.
What is a seismograph?
300
As rocks are exposed to the surface weathering and erosion break them down into smaller pieces called.
What is sediment?
300
This is the least reliable test to determine what a mineral is since it can change due to weathering and impurities.
What is color?
400
The layer made up of the crust and the upper part of the mantle
What is the lithosphere?
400
These volcanoes are made by alternating layers of lava and ash.
What are composite volcanoes.
400
This type of fault is associated with transform plate boundaries.
What is Strike-Slip?
400
This process happens as layers of sediment are built up over time causing more weight and pressure to make it into rock.
What is compacting?
400
This is a property of minerals that is determines by the amount of substance you have in a given space, or more simply mass divided by volume.
What is density?
500
This is thought to be the force that moves the tectonic plates.
What are convection currents?
500
These volcanoes start as tall loosely packed layers of ash that can quickly be eroded away.
What are cinder cone volcanoes?
500
We refer to the area on earth's surface directly above the origin of the earthquake as this.
What is the epicenter?
500
Sometimes organic, or living material, gets trapped in sediment and forms into this as the sediment is formed into rock.
What is a fossil?
500
This chart uses a scale from 1 to 10 to identify a mineral's hardness.