NEW
Font size
WorksheetsG8. Geo - U2WK1 - Unit Introduction
Total questions: 15
Worksheet time: 8mins
What is a natural hazard?
It is a physical occurrence that happens naturally
It is a natural event that has the potential to cause loss of life or economic damage
It is a natural event that always causes widespread destruction
It is any event that causes humans to evacuate an area
A natural disaster is when:
A natural event is predicted by scientists
A natural hazard is observed and measured
A natural event causes loss of life and damage to property
A natural event occurs in a remote, uninhabited area
A volcano on a remote, uninhabited island (无人居住的岛屿) erupts, spewing lava and ash. No one is there to see it, and it does not impact any human structures.
Natural Event
Natural Hazard
Natural Disaster
A large fault line, capable of producing a major earthquake, is discovered running directly beneath a very populated city.
Natural Event
Natural Hazard
Natural Disaster
A powerful earthquake strikes a region, collapsing buildings, destroying roads, and resulting in the loss of hundreds of lives.
Natural Event
Natural Hazard
Natural Disaster
What is the key difference between magma and lava?
Magma contains gas, while lava does not
Magma is found on the Earth's surface, while lava is found underground
Magma is molten rock below the surface, while lava is molten rock on the surface
Lava is more dense than magma
The process of convection in the Earth's mantle involves:
The rapid movement of tectonic plates
The melting of rock into magma
The circular movement of material where hotter, less dense rock rises and cooler, denser rock sinks
The solidification of lava into igneous rock
I am the hottest layer of the Earth. I am a solid ball, mostly made of iron and nickel, and I am under immense pressure. What am I?
The Mantle
The Outer Core
The Inner Core
The Crust
I am the thickest layer of the Earth, located between the crust and the core. I am mostly solid, but can flow very slowly, and convection currents occur within me. What am I?
The Crust
The Mantle
The Outer Core
The Inner Core
I am the thin, solid, outermost layer of the Earth. I am fragmented into large pieces called tectonic plates. What am I?
The Mantle
The Inner Core
The Outer Core
The Crust
I am a liquid layer that surrounds the inner core. I am made of iron and nickel, and my flow generates the Earth's magnetic field. What am I?
The Mantle
The Outer Core
The Crust
The Inner Core
Tectonic hazards, such as earthquakes and volcanic eruptions, are most likely to occur:
Randomly across the Earth's surface
In the exact center of tectonic plates
Near the edges of Earth's tectonic plates
Only on the ocean floor
Which of the following is a direct example of a tectonic hazard?
A hurricane
A tornado
An earthquake
A wildfire
The term 'tectonic' specifically relates to:
The study of atmospheric phenomena
The structure and movement of the Earth's crust
The classification of different types of rocks
The impact of human activity on the environment
Which statement about the Earth's structure is accurate?
The mantle is the thinnest and coldest layer
The inner core is a liquid layer
The crust is thicker under the oceans than under continents
The outer core is liquid and generates the Earth's magnetic field
