Rapid Change 1
What is it called when a mountain spews out lava?
Volcanic eruption
What is it called when the ground shakes suddenly?
Earthquake
What happens when rock and soil slide down a hill?
Landslide
What is it called when snow rapidly slides down a mountain?
Avalanche
Why does lava come out of a volcano?
Because of pressure from gases and magma under the Earth's surface.
What can cause buildings to shake during an earthquake?
Movement of the Earth’s plates.
What can heavy rain do to a steep hill?
Cause a landslide.
What can cause an avalanche in winter?
Heavy snowfall and unstable snowpack.
What is volcanic ash?
Tiny pieces of rock and glass thrown into the air by a volcano.
How can we stay safe during an earthquake?
Drop, cover, and hold on under a sturdy desk or table.
What is one way humans can help prevent landslides?
By managing water drainage and not removing too much vegetation.
How can people avoid getting caught in an avalanche?
Stay on marked trails and avoid steep slopes.
What can form when a volcano erupts under the ocean?
New islands or land.
What device measures the strength of an earthquake?
Seismometer
What are signs that a landslide might happen soon?
Cracks in the ground, tilted trees, or water leaking from the ground.
What equipment should skiers carry to stay safe from avalanches?
Avalanche transceiver, probe, and shovel.
How can volcanic eruptions affect the climate?
They can cool the Earth by blocking sunlight with ash clouds.
What long-term effect can earthquakes have on a landscape?
They can change the course of rivers and create new landforms.
Why are landslides dangerous for people living nearby?
They can destroy homes and roads, and block routes.
What can be done to stabilize slopes to prevent avalanches?
Planting trees and controlling snow accumulation.