Volcanoes Flashcards
to learn volcanoes and parts of it
What is a volcano?
A volcano is an opening in the Earth’s crust where molten rock, ash, and gases can escape from below the surface.
True or False: All volcanoes are active.
False
What are the three main types of volcanoes?
Shield, stratovolcano, and cinder cone.
Fill in the blank: The molten rock that erupts from a volcano is called ______.
lava
Which type of volcano is characterized by a broad, gently sloping shape?
Shield volcano.
What is the term for a volcano that has not erupted in a long time but could potentially erupt again?
Dormant volcano.
Multiple Choice: Which of the following is an example of a stratovolcano? A) Mauna Loa B) Mount St. Helens C) Paricutin
B) Mount St. Helens
What is the term for the explosive eruption of a volcano?
Plinian eruption.
True or False: Lava flows can travel faster than a human can run.
True
What do you call the area around a volcano that is affected by its eruptions?
Volcanic zone.
Fill in the blank: The study of volcanoes is called ______.
volcanology
What type of lava is known for its low viscosity and ability to flow long distances?
Basaltic lava.
Multiple Choice: Which gas is commonly released during volcanic eruptions? A) Oxygen B) Carbon Dioxide C) Nitrogen
B) Carbon Dioxide
What is the main difference between magma and lava?
Magma is molten rock beneath the Earth’s surface; lava is magma that has erupted onto the surface.
True or False: Volcanic ash can be harmful to human health.
True
What natural disaster can be triggered by a volcanic eruption?
Tsunami.
Fill in the blank: The ______ is the opening at the top of a volcano through which eruptions occur.
vent
What do you call a volcanic eruption that is characterized by a column of gas and ash reaching high into the atmosphere?
Plume eruption.
Multiple Choice: Which of the following is NOT a volcanic hazard? A) Lava flows B) Earthquakes C) Snowstorms
C) Snowstorms
What is the term for the landform created by the accumulation of volcanic material?
Volcanic cone.
True or False: The Ring of Fire is a region with a high number of earthquakes and volcanoes.
True
Fill in the blank: ______ eruptions are typically less explosive and produce more lava than ash.
Hawaiian
What is the name of the most active volcano in the world?
Kilauea.
Multiple Choice: Which type of volcano is usually the smallest? A) Shield B) Stratovolcano C) Cinder Cone
C) Cinder Cone
