What is a(n) opening in the earth's surface through which lava, ash, and gases flow??

Having to do with molten earth materials.

What can magma chambers form??

What is a opening in the earth's crust were magma spills out??

What does the build up of lava form when it cools??

What are the 3 main types of magma?

(True or False) Lava cause many deaths when volcanic eruptions happen.

What type of lava forms when lava erupts underwater and forms a shell, then the melted lava inside burst out and forms a new shell?

What type of lava moves slowly, forming a splintered, sharply fractured surface?

What type of lava has a smoothly wrinkled, ropey surface?

(True or False)?Volcanoes do produce other substances besides lava.

What is the 1st sign of a volcano eroding?

What are hot solid particles that suspend in water vapor?

(True or False) A volcanic mudslide caused by the steam and water that melt the snow, is called a Glowing Avalanche?

What are vents on the ground that steam and other gases escape?

What is the common cause of death from a volcano eruption?

What are the thick layers of igneous rock that covers most parts of the earth?

How are volcanoes classified?

What type of volcanoes consist of primarily gravel-sized bits of tephra?

What type of volcano ejects lava and pyroclastic materials, also is the type that most of the earth's volcanoes are made of?

(True or False) A volcano is considered Dormant when it is currently erupting or has been observed to erupt in historical times?.

(True or False) A volcano is considered Dormant when it is inactive but, un-eroded?

(True or False) A volcano is considered extinct, when it is heavily eroded?

How do scientist rate a volcano's explosivity?

What is a unwanted or unexpected entry of something into a place?

What are horizontal, shelf-like formations; they often act as protective caps?

What are wall-like, cross rock strata?

What are large amounts of magma, collected in chambers, cooled, and hardened?

Batholiths

Stocks

Laccoliths

What is the rate that the temperature changes in the earth, according to the depth?

What is the continuous, geothermally driven flow of water?

What is heated water that rises to the earth's surface as a liquid??

What are stepped rock formations; algae and bacteria provide coloring?

What are deposits of tephra?

What is it called when it forcefully eject water from the ground, at regular intervals?

What is a layer of loose pyroclastic materials and ash covering the ground after a eruption?

What are blobs of lava that solidify in a streamlined shape in mid-air??

What is like ash but larger and is usually about 2-64mm in size?

What are the zones of igneous rock that covers many places in the world including the ocean floor called?

What is a depression at the top of the top of a volcanic cones?

What is a depression in top of the volcano caused by a(n) eruption?

What type of volcano has eruptions that consist of mainly bursts of gases, that eject mainly pyroclastic materials?