How would you describe a volcano in your own words?

A volcano is an opening in a planet or moon’s crust through which molten rock, hot gases, and other materials erupt. Volcanoes often form a hill or mountain as layers of rock and ash build up from repeated eruptions. Volcanoes are classified as active, dormant, or extinct.

Can you describe the volcano?

A volcano is an opening in the earth’s crust through which lava, volcanic ash, and gases escape. Beneath a volcano, liquid magma containing dissolved gases rises through cracks in the Earth’s crust. As the magma rises, pressure decreases, allowing the gases to form bubbles.

How do cinder cone volcanoes behave?

Mechanics of eruption The rock fragments are made of pyroclastic material (cinders or scoria); they are often glassy and contain numerous gas bubbles “frozen” into place as magma exploded into the air and then cooled quickly. During the waning stage of a cinder cone eruption, the magma has lost most of its gas content.

Is a cinder cone volcano quiet or explosive?

Cinder cones very rarely rise to more than 1,000 feet above the surrounding landscape. Cinder cones are known for their very violent, explosive, exciting eruptions.

How does a cinder cone volcano erupt?

Cinder cones are the simplest type of volcano. Explosive eruptions caused by gas rapidly expanding and escaping from molten lava formed cinders that fell back around the vent, building up the cone to a height of 1,200 feet. The last explosive eruption left a funnel-shaped crater at the top of the cone.

How do you describe volcanic eruption?

Definition: A volcanic eruption occurs when magma is released from a volcano. Volcanic eruptions can be quite calm and effusive, or they can be explosive. Effusive eruptions produce lava flows, while explosive eruptions produce ash and pyroclastic density currents. Volcanic Eruption.

What are the characteristics of a cinder cone?

The characteristics of cinder cones include:

• cone shape.
• made of igneous rock.
• typically symmetrical; can be asymmetric if wind was blowing during an eruption and rock landed primarily on one side.
• relatively low altitude (300-1200 ft.)
• eject fragments of lava (called tephra) from one vent.

What is the characteristics of a volcano?

Characteristics of volcanoes

• A volcano is formed by eruptions of lava and ash.
• Volcanoes are usually cone shaped mountains or hills.
• When magma reaches the Earth’s surface it is called lava.
• Volcanic eruptions can happen at destructive and constructive boundaries , but not at conservative boundaries or collision zones .

How will you describe the three types of volcano namely cinder cones composite and shield?

Composite volcanoes are tall, steep cones that produce explosive eruptions. Shield volcanoes form very large, gently sloped mounds from effusive eruptions. Cinder cones are the smallest volcanoes and result from accumulation of many small fragments of ejected material.

What are the parts of a volcano briefly describe each?

Sill – A flat piece of rock formed when magma hardens in a crack in a volcano. Vent – An opening in Earth’s surface through which volcanic materials escape. Lava – Molten rock that erupts from a volcano that solidifies as it cools. Crater – Mouth of a volcano – surrounds a volcanic vent.

What does a cinder volcano look like?

As the name “cinder cone” suggests, they are cone-shaped hills made up of ejected igneous rocks known as “cinders”. These small volcanoes usually have a circular footprint, and their flanks usually slope at an angle of about 30 to 40 degrees. Most cinder cones have a bowl-shaped crater at the top.

What are 3 facts about cinder cone volcanoes?

Cinder Cones

• Cinder cones are the simplest and most common type of volcano.
• Cinder cones form over time from particles from fire fountains.
• Cinder cones are never huge and have a slope of around 33 degrees.
• They can be new volcanoes, or they can form over the vents of pre-existing volcanoes.