Show:
Earthquakes
Volcanoes
Plate Tectonics
chemistry
Toss Up
100
This 12 level Roman numeral scale uses descriptions of damage to rate the severity of an earthquake.
Mercalli scale
100
Where is the Ring of Fire located?
Around the Pacific Plate
100
Define convergent plate boundaries
When plates are moving toward each other.
100
How many energy levels are present in a Bohr diagram of potassium?
4
100
A ____________ rock forms under heat and pressure of existing rock
metamorphic
200
Which earthquake wave causes the most damage
surface wave
200
What type of volcano formed the Hawaiian Islands?
Shield
200
The mid-ocean ridge occurs at a ____________ plate boundary
divergent
200
How many valence electrons are present in Calcium?
2
200
Granite cools slowly inside the volcano. It's texture is
phaneritic
300
Which wave is a compression wave
P wave
300
What is subduction and how does it occur?
Subduction occurs when an ocean plate moves under a continental plate. The ocean plate moves under because it is more dense than the continental plate
300
When the continents were once joined the land mass was known as _____________
Pangaea
300
What type of bond is made between Carbon and Oxygen in CO2
molecular covalent
300
How do hot spots form?
When magma breaks through a weak spot in the crust
400
What are the first two steps for determining the epicenter of an earthquake
1) Use 3 seismograms to determine the S-P interval 2) Use a graph to determine the distance...
400
What is the composition of a shield eruption?
basaltic lava, low silica
400
Give an example of where subduction occurs
Pacific plate moving under South American plate
400
Balance __ Al + __ O2 --> __ Al2O3
4 Al + 3 O2 --> 2 Al2O3
400
Which type of volcano erupts violently with high amounts of silica?
composite volcano
500
How is an epicenter different from a focus?
Focus is below ground where quake actually occurred. Epicenter is on the surface above focus.
500
What happens at mid ocean ridges?
Plates are diverging, moving apart, and magma erupts through "gap"
500
List 4 pieces of evidence for Pangaea
Answers will vary
500
What is the oxidation number of chlorine?
-1
500
What is the oxidation number of silicon?
+4/ - 4