This volcanic rock is so light, it can even float in water. It can also be used to polish and smoothen things.
What is pumice?
100
Volcanoes that have erupted recently, or will erupt soon, is called __________?
What is an active volcano?
100
Liquid rock inside a volcano.
What is magma?
100
On May 18, 1980, Mt. _______ erupted. This volcano killed about 57 people, and is located in southwestern Washington State.
What is Mt. St. Helens?
100
The Earth's crust is made of huge slabs called _____, which fit together like a jigsaw puzzle.
What are plates?
200
This 'rock' is lava cooled down while flying through the air. Most are rounded and are about the size of a tennis ball, or football.
What is a volcanic bomb?
200
A volcano that has already erupted, ad is expected to erupt again.
What is a dormant volcano?
200
Magma that flows out of a volcano.
What is lava?
200
In the southern part of the Philippines, this volcano erupted very violently in 1991. It is known as one of the largest volcanoes in the Philippines. More than 700 people were killed.
What is Mt. Pinatubo?
200
This is the process in which the plates move.
What are plate tectonics?
300
Very small fragments of rocks and lava shot into the air.
What is ash? (lol technically not a rock XD)
300
A volcano that has already erupted and will never erupt again.
What is an extinct volcano?
300
This flow is a fluidized mixture of semi-solid fragments with hot, expanding gases flowing down the sides of a volcano. It is very deadly and more extreme than regular lava.
What is a pyroclastic flow?
300
This active volcano is the largest volcano on the planet. It is located in Hawaii, and from it's base below the sea level to it's summit, it is taller than Mt. Everest.