A
melted rock beneath earth's surface (from mantle)
Magma
Magma that reaches the surface when it cools forms solid rock
Lava
type of volcano
high viscosity
gases are trapped
lots of silica in magma/lava, light colored
Cone like
Cinder cone (explosive)
most volcanoes are found..
underwater
True or False
Silica is dark colored
False
Formed by volcanos that rim the pacific ocean
Ring of fire
The resistance for liquid to flow
Viscosity
Type of volcano
Flat shaped
Low viscosity (runny)
Gases freely moving
low silica, dark in color
Sheild (quiet)
what plate boundary doesn't have volcanoes
Transform boundary
True or false
Volcanoes can form along diverging plate boundaries on land
TRUE!!
A week spot in the crust where molten material or magma comes to the surface is a ....
Volcano
Fast-moving hot lava with a low viscosity
Pahoehoe
A substance that can not be broken down into other substances
ex. carbon, hydrogen
element
Where are most volcanoes found on earth
hot spot
True or False
Many volcanoes from near converging boundaries where oceanic crust returns to the mantle
TRUE!!
Area where magma melts through the crust above it
Hot spot
Higher viscosity when pahoehoe, when it hardens forms hard surface
Aa
A substance made of two or more elements that have been chemically combined.
compound
plates and volcanoes are connected by..
plates converge or diverge to allow a volcano to form
A string of islands formed by volcanos along a deep ocean trench
Island arc
Made up of particles of the elements of oxygen and silican. Magma is maid up of this its the main ingredant
Silica
Any characteristic of a substance that can be observed and measured without changing the composition.
Physical property
Any property that produces a change in the composition of matter.
Chemical property