Properties of Rocks
What is texture in a rock?
The size, shape, and arrangement of the minerals or grains in the rock.
Sandstone is an example of this type of rock.
What is sedimentary rock?
The theory that Earth’s lithosphere is divided into moving sections.
What is plate tectonics?
The red arrows show two plates in this boundary.
What is a transform boundary?
A fault is a break in this outer layer of the Earth.
What is the crust?
A mineral has cleavage if it breaks along these flat surfaces.
What are cleavage planes?
These rocks form from cooling magma or lava.
What are igneous rocks?
The Asthenosphere lies beneath this outer layer of the Earth. (Image of Earth layers)
What is the lithosphere?
A volcano is likely to form at this boundary.
What is a convergent boundary?
The point of origin of an earthquake is called this.
What is the focus epicenter?
The streak of a mineral is this.
What is the color of the powdered form of the mineral?
The rocks in this family are formed by heat and pressure.
What are metamorphic rocks?
How old do scientists estimate Earth to be?
What is about 4.6 billion years?
Identify this kind of plate boundary.
What is a divergent boundary?
A seismograph measures these waves from an earthquake.
What are seismic waves? Primary and Secondary waves
The property shown here is known by this term. (Image of cleavage)
What is cleavage?
This rock type forms from fragments of other rocks.
What is sedimentary rock?
Earth’s mantle is composed of this type of material.
What is semi-solid rock?
The red arrows show two plates in this boundary.
What is a convergent boundary?
Be prepared to evacuate if you are in one of these areas.
What is an earthquake hazard zone?
How much do plates move in a year?
What is 1 - 6 inches
List 2 signs that indicate increased volcanic activity.
What is increased steam. ground moving