6.3.4

Categorize

Options (6)

a tall, cone-shaped volcano with a broad base and steep sides

often found along convergent plate boundaries and known for explosive eruptions

a huge, gently sloping volcano with a wide base

often found at hot spots, known for nonexplosive eruptions

a small, cone-shaped volcano composed of rock fragments

smallest volcano, often forming near larger volcanoes

Organize these options into the right categories

composite volcano

shield volcano

cinder cone

Reorder

Drag to correctly order the processes that lead to a volcanic eruption.

• 
  rock deep inside the Earth heats up

• 
  the heat deep within the Earth turns the rock into magma

• as the magma continues to heat up, it expands and becomes less dense than the rock around it

• 
  

  magma that is less dense than the surrounding rock rises through the Earth's crust

• magma reaches the surface of the Earth

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

How do gas emissions and ground deformation work together to predict eruptions?

• Gas emissions and ground deformation track temperature changes to predict eruptions.

  
  

• Gas emissions track sulfur dioxide, and ground deformation tracks mountain height.

  
  

• Gas emissions track gases, and ground deformation monitors surface changes.

  
  

Multiple Choice

How do nonexplosive and explosive volcanoes compare?

• Nonexplosive eruptions are caused by gas build, while explosive eruptions occur when there is no gas released.

  
  

• Both types produce large clouds of ash, but explosive eruptions are faster, and nonexpolsove eruptions are slower.

  
  

• Nonexplosive eruptions release flowing lava, while explosive eruptions release ash and rock due to gas pressure.

  
  

Multiple Choice

Hotspots are found ___.

• at divergent boundaries
• at convergent boundaries
• at transform boundaries
• within a plate (intraplate)

Multiple Choice

A large volcanic crater that is formed after the magma chamber collapses.

• Shield Volcano

• Hot Spot

• Caldera

• Subduction

Multiple Choice

A group of scientists are studying a volcano and they use advanced imaging technology to detect a large reservoir of molten rock deep beneath the Earth's surface.

What part of the volcano are the scientists observing?

• crater

• conduit

• side vent

  
  

• magma chamber