HMH Eruption Study Guide

Front

What does 'evacuation' mean?

Back

The act of moving from a dangerous area to a safer one.

Front

Who is a 'victim'?

Back

Someone who suffers or dies because of a bad situation.

Front

What is the main difference between lava and magma?

Back

Magma is found underground, lava is above ground.

Front

Which statement best describes volcanoes?

Back

Volcanoes are difficult to predict because they don't erupt in a straight, orderly progression.

Front

What does the word 'notable' mean?

Back

Worth noticing.

Front

What is a volcano?

Back

A mountain or hill with an opening where lava, rock fragments, and gases can escape from the Earth's crust.

Front

What causes a volcanic eruption?

Back

The buildup of pressure from magma beneath the Earth's surface.

Front

What is magma?

Back

Molten rock located beneath the Earth's surface.

Front

What is lava?

Back

Molten rock that has erupted onto the Earth's surface.

Front

What is an earthquake?

Back

The shaking of the Earth's surface caused by the movement of tectonic plates.