magma that flows out onto Earth's surface.
What is lava?
What are the 3 types of volcanoes?
The 3 types of volcanoes: Cindercone, Shield, and Composite
What do we call those who study and research volcanoes?
Who are volcanologists?
a place where fluid collects, and volcanic materials erupt.
What are magma chambers?
What is a cinder cone volcano?
This type of volcanic landform is made up of small rock particles, or cinders. It is characterized by a small cone with steep sides.
Particles of rock, solidified lava, and ash of all different sizes.
What is tephra?
Where do most volcanoes occur?
What are Plates.
Openings through which volcanic materials erupt are called ______. They are located near the peak of the mountain.
what is a vent? where is it located?
What is a shield volcano?
This type of volcano is made up of layers of lava rocks. It is created slowly which makes it broad with gentle sloping sides.
An area in Earth’s mantle that is hotter than other areas.
What is a hot spot?
Is the area around the Pacific Plate where earthquakes and volcanoes are common.
What is the Ring of Fire?
One factor that determines whether a volcanic eruption will be quiet or explosive is the ____.
What is the amount of water vapor and other gases trapped in the magma?
a steep-walled depression around the vent
What are craters?
This type of volcanic landform is made up of layers of lava flows alternating with layers of ash, cinders, and rocks. It is steep.
What is a composite volcano?
_____produces explosive eruptions.
_____ produces quiet eruptions.
What is high silica?
What is poor silica?
Why does magma rise?
magma, the melted mantle, rises because it is filled with gas and is less dense than the solid rock around it.
TRUE or FALSE: A liquid with a high viscosity will also have a high flow rate (it will flow faster).
What is false?
Which type of volcanic landform is the most destructive? Name an example of one.
Composite volcano. Mt. St. Helens is a composite volcano.
Which type of lava is more fluid? It develops a smooth skin and forms ropelike structures.
What is Pahoehoe?
What kind of volcanic eruption occurs when basaltic magma is present?
What are quiet eruptions?