Exercise
Viscosity and Silica Content of Magma
Examine how silica content affects the viscosity and flow rate of magma. Discover how thick, sticky magma differs from fluid magma in volcanic processes.
Questions
-
MultiChoice
What does 'viscosity' measure in magma?
-
MultiChoice
Which mineral component most strongly determines magma's viscosity?
-
MultiChoice
How does high silica content affect magma?
-
MultiChoice
Low-viscosity magma flows in which manner?
-
MultiChoice
Which type of magma produces gentle, flowing eruptions?
-
MultiChoice
Why does high-viscosity magma cause explosive eruptions?
-
MultiChoice
Basaltic magma is known for having which characteristics?
-
MultiChoice
Rhyolitic magma is characterized by which features?
-
MultiChoice
If you compare magma to liquid honey from the fridge, honey has what kind of viscosity?
-
MultiChoice
What happens to magma's viscosity as its temperature decreases?
-
MultiChoice
Which magma type moves the fastest down a slope?
-
MultiChoice
What mineral makes rhyolitic magma thick and light in color?