The Rock Cycle
What is the rock cycle?
processes in which one rock is changed into another
What is Weathering?
The breaking down of rocks
What is a natural hazard?
A naturally occurring event that has the potential to threaten humans
What is Erosion
rocks are transported.
If you live near a volcano what should you do?
Evacuate
What type of rock is formed by volcanic material?
Igneous rock
What are the two main types of weathering
Chemical and Physical Weathering
What is a tsunami?
a series of big waves
What is Deposition?
Sediment dropped off in a new location
What can be build around bodies of water to reduce the risk of flooding?
floodwalls
What three rocks make up the rock cycle?
Igneous, Metamorphic and Sedimentary
The formation of rust is an example of which type of weathering?
Chemical Weathering
Which natural hazard does a drought have the potential to start?
Wildfire
What is rain washing soil away from a hillside an example of?
Erosion
What natural disaster can lead to a tsunami?
Earthquake
How does metamorphic rock become sediment?
Weathering and Erosion
Plants growing out of sidewalks are an example of what type of weathering?
Physical Weathering
Where are tsunamis most likely to occur?
near the coast
What must occur before erosion can take place?
Weathering
Do earthquakes always cause the same amount of damage?
No because they vary in size, which can be determined by the magnitude.
How does sedimentary rock transform into metamorphic rock?
Heat and Pressure
Are some rocks resistant to weathering?
yes, intrusive igneous rocks
What is used to measure seismic waves?
Seismograph
What are layers of sediment forming at the bottom of the ocean an example of?
Deposition
Which natural hazard is caused by the movement of tectonic plates along boundaries?
Earthquake