Mountains of Fire
Sometimes they errupt with a combo of baking soda and vinegar, but a better definition is an opening in the crust of the earth through which lava, ash, and gases emerge
What is a volcano?
En fuego! Don't touch this hot, molten rock under the crust!
What is magma?
Liquid rock that has escaped from the earth’s insides
What is lava?
Tiny angular glassy fragments, resembling the dusty ash made from burning wood
What is ash?
Old people, wait, no, that's not right...a hot spring that forcefully ejects its water from the ground at regular intervals
What is a geyser?
A volcano that is currently erupting or has been observed to erupt in historical times or a description of a kindergartener that can't sit still
What is active?
Large spaces that the pre-lava collects in and travels through
What are magma chambers?
Also shared by a famous lake in Oregon, this is a caved in, bowl shaped depression on the surface
What is a crater?
Mt. Hood is one of the most common types of this volcano
What is a stratovolcano?
A volcanic mudslide caused by melted snow and ice
What is a lahar?
Did you fall asleep? No, are you just inactive but uneroded?
What is dormant?
No, it's not a part of a window. These are horizontal, shelf-like igneous intrusions in a volcano
What are sills?
A crater like depression that occurs when the upper portion of the cone collapses or blows away
What is a caldera?
A small, steep-sided volcano made primarily of gravel-sized bits of tephra and other pyroclastic materials
What is a cinder cone?
Another planet, nope...large amounts of magma collected in huge chambers, cooled, and hardened
What is a pluton?
Dinos don't roam the earth or a volcano showing no signs of seismic or volcanic activity that is often heavily eroded
What is extinct?
These vertical, wall-like intrusions cross rock strata upwards, not horizontally like their friends, the sills.
What are dikes?
Not to be confused with an electric vehicle, this is a layer of loose pyroclastic material and ash that covers the ground
What is tephra?
A broad, flattened, dome shaped representing something a knight might carry is this type of volcano built up by successive quiet eruptions of runny lava
What is a shield volcano?
Ouch, ouch? A type of lava with splintered, sharply fractured surface
What is ’A’a?
Fire material? Yep, it's a mixture of hot solid particles suspended in water vapor
What is a pyroclastic flow?
Not for air conditioning, this opening in the earth’s crust from which lava, ash, and gases can escape
What is a vent?
A vent in the ground where steam and other gases escape
What is a fumarole?
Lord of the... no, that's not right. This region around the rim of the Pacific Ocean is where many volcanic eruptions and earthquakes occur
What is the Ring of Fire?
Do you speak Hawaiian?! This smoothly wrinkled, ropey surface is a type of lava
What is Pahoehoe?