Test 8-9- Earth Science

volcano that emits lava and solid debris in alternately quiet and explosive eruptions

Volcanologists use the VEI to detect the intensity and explosion from a volcano.

Magma that reaches the earth's surface

Which of these are NOT lava?

Volcanoes are made of ____ rocks.

Solidified lava is called

A scientist who studies volcanoes is called a geologist.

Diamond is composed of carbon.

Which of these is the correct order from smallest to largest?

When did volcanoes form?

Diamond is composed of carbon.

Mount Vesuvius was dormant for nearly ____ years before it wiped out two cities built at its base in AD 79.

The most powerful volcanic eruption in history?

A metal worth more per ounce than gold before scientists found a practical means of extracting it from the ore?

Geyser water is heated by lava.

A carat is a unit of

A depositional mountain landform built from solidified magma deep in the earth is called a

Which of the following is NOT a term relating to the activity level of a volcano?

A mudslide caused by a volcano is called a

Pillow lava forms

Explain why copper makes a good material for plumbing pipes.

Which of these are NOT magma?

Which of these volcanoes is located in the state of Washington?

an enlarged depression caused by an explosion or the collapse of a volcanic cone

streamlined mass of ejected lava that solidified in flight

Volcanoes exist on all other earth like planets an on many of the larger moons on the solar system.

volcano that emits mostly cinders, ashes, and bombs

Which of the following is NOT a native mineral?

The Circum-Pacific volcano belt is sometimes called the Ring of Fire.

A volcano begins to form when a magma forces its way to the surface and breaks through, forming a hole or

A spring that periodically ejects large quantities of hot water and steam is known as a

Which volcano actively erupts every hour for the last 2000 years?

Describe the types of emissions from volcanoes and rate them according to how dangerous they have been to humans.

Fool's gold is also called

Which of these structure types is the most common for volcanoes?

volcano that emits mostly lava in quiet eruptions

volcano having no historical record of eruption and showing no seismic indications of activity deep underground

Some volcanoes that were considered dormant have erupted with disastrous results.

The best metallic conductor of electricity is

tiny, angular, glassy fragments