Inside the Earth
Earth is made up of 3 main layers. What are they?
Crust, Mantle, and core
What are the two types of plates?
Ocean and continental
What is the area beneath the earthquake called?
Focus
Social effects of earthquakes.
Loss of life and injuries, displacement of families, trauma, anxiety, and stress. School closures and disrupted routines. Strain on emergency and medical systems
Mr. Basic's favourite colour.
razzmatazz
Define composite and physical propeprties
Composition = what it's made of
Physical properties = characteristics that are unique and help identify the substance
What is the boundary between two plates that are moving apart or rifting and causes seafloor spreading?
Divergent plates
What measures earthquakes on a 10.0 scale?
Richter scale
What are enviormental effects of earthquakes?
Landslides and ground rupture and liquefaction of soil
Tsunamis caused by undersea quakes
Damage to ecosystems and waterways
Who was the scientist behind the theory of plate tectonics?
Alfred Wegener
What are the physical properties and compsotion of the crust?
Physical properties = the outermost layer, the thinnest layer, and surface temperature
Composition = loose rocks and soil
What are the 3 types of convergent boundaries?
1) Ocean plate colliding with a less dense continental plate
2) Ocean plate colliding with another ocean plate
3) Continental plate colliding with another continiental plate
What carries energy from an earthquake away from the focus?
Seismic waves
What are community recovery and resilience?
Emergency response systems
Government and international support
Mental health supports and community rebuilding
Improved planning and building codes
How were the Himalayas formed?
formed by the collision of the Indian and Eurasian Plates
What are the 2 types of crust and how are they different?
Continental crust: granite and less dense
Oceanic crust: basalt and thinner than continental crust
What created the San Andreas Fault?
Transform fault boundaries
What are the 3 waves, and tell me why they are different?
P waves = primary waves that compress and expand the ground
S waves = secondary waves that vibrate from side to side as well as u and down
Surface waves = slowest waves that produce severe ground movements
Earthquakes often force thousands into temporary shelters, leading to overcrowding and limited privacy, an issue known as this
displacement
What are Soft-Story buildings?
Multi-story buildings with weak and/or open wall lines create a “soft-story” often seen in apartment buildings with tuck-under-parking.
Define the lithosphere, asthenosphere, and mesosphere.
Lithosphere: outermost layer- includes the crest and upper mantle. Divided into pieces or tectonics plates.
Asthenosphere: is composed of solid, flowing rock and the layer on which pieces of the lithosphere move, apart of the middle mantle.
Mesosphere: strong, lower part of the mantle. It is the layer between asthenosphere and core
Define convection currents.
Hot magma in the Earth moves toward the surface, cools, then sinks again. Creates convection currents beneath the plates that cause the plates to move.
What is the Mercalli scale?
rate earthquakes on the level of damage at a certain place
After disasters, some groups receive slower or inadequate aid due to systemic barriers linked to discrimination, an issue known as this.
social inequity or system bias
Who is Mr. Basic's favourite student?
Ava Tompkins