Nature of Volcanic Eruption

This material is a mixture of pyroclastic rocks, dust, and water.

• Magma

• Lava

• Lahar

• Lapilli

Tags

NGSS.MS-ESS3-2

Which of the following is an effect of ash or ash clouds. (Select all that applies.)

• Covers a large area from sunlight

• Particulate matter can enter the respiratory tract causing infections

• It may fertilize the soil

• It calms the volcano

• It can damage infrastructures

Tags

NGSS.MS-ESS3-2

This refers to the molten material that has reached the surface and has less amount of dissolved gas.

Tags

NGSS.MS-ESS3-2

COMPLETE THE ANALOGY

Less SiO₂ : Mafic

More SiO₂ : ____

Tags

NGSS.MS-PS1-1

TRUE or FALSE

Fluids will still move if there is no difference between pressure levels.

• TRUE

• FALSE

TRUE or FALSE

Mafic magma is less viscous than Felsic magma.

• TRUE

• FALSE

Which of the following factors affects the viscosity of magma? (Select all that applies.)

• Temperature

• Pressure

• Amount of SiO₂

• Velocity

Tags

NGSS.MS-PS1-4

COMPLETE THE SEQUENCE

Dissolved gas absorbs heat > _______________ > Magmatic pressure increases

• Dissolved gas bubbles shrink

• Dissolved gas bubbles expand

• Dissolved gas bubbles disappear

• Dissolved gas bubbles pop

Tags

NGSS.MS-PS1-4

FILL IN THE BLANK

Volcanism happens when magmatic pressure overcomes the ______________

IDENTIFY: This refers to a material's ability to resist flowing.