Earthquakes Revision

Define earthquake?

• hot magma rises while cold magma sinks

• shaking of the eart caused by a sudden release of energy

• atmospheric condition over a long period of time

• magma rises from the surface

Which of these three are the correct sequence of plate movement?

• Convergent

• Divergent

• Constructive

• Transform

Where do earthquakes occur? Choose TWO

• In the pacific ocean known as 'Pacific Ring of Fire'

• Interior of Russia

• In the middle of Pacific ocean

• Along the west coast and North of South America

_______________ is the point on the Earth's surface that cause tremors that shake the ground.

• Focus

• Shock waves

• Epicentre

• Tremors

Which best describes focus?

• the point where the earthquake starts beneath the Earth's crust

• energy travels through the Earth

• its the waves that cause tremors

Name example of TWO oceanic plates that moves towards each other

• Nazca and South American

• Eurasian and Pacific

• Eurasia and Indo-Australian

• Pacific and Atlantic

Name TWO continental plates that creates mountain range

• Nazca and South American

• African plates

• Eurasian and Indo-Australian

• Pacific and Atlantic

Name the famous transform plates

• Pacific Ring of Fire

• African Rift Valley

• San Andreas fault

• Mid-Atlantic Ridge

What is the terms when two oceanic plates diverge?

• Convection Current

• Pacific Ring of Fire

• Sea-floor spreading

Which THREE describes the PROCESS of convection current?

• Heat from the Earth's interior causes the hot magma rises to the surface

• movement of the convection current causes earthquakes to occur

• Magma risen to the Earth's surface spread out and cools

• Cold magma sinks and the processes are in cycle