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Magma
Volcanoes
Volcanoes (cont)
¿MYSTERY?
Vocab
100
What is Lava Flow?
Lava Flow is the area that is covered by lava while it pours out of the vent.
100
What is the crater? (of a volcano)
The crater is a bowl-shaped that forms above the pipe/vent of a volcano.
100
What is a pipe?
The pipe is the main vent in which the magma, gases, and ash travel through.
100
What type of scientist studies volcanoes?
Geologists.
100
Define Volcano
A volcano is a weak spot in the crust where molten material comes to the surface, or also known as magma.
200
During a volcanic eruption, magma moves through the vent/pipe. True or False.
True
200
Where do hot spot volcanoes form?
In the center of a tectonic plate.
200
What is the magma chamber?
The magma chamber is where the magma fills up and there is typically lots of pressure there!
200
What are the 2 types of lava?
Pahoehoe and Aa
200
Define Magma
Magma is a molten mixture of rock forming substances coming from the mantle.
300
Some magma can flow like water. True or False.
True.
300
What is a hot spot volcano?
A hot spot volcano is an area in the middle of a tectonic plate from where magma deep from the mantle melts through the crust.
300
What are the 2 types of volcanic eruptions?
Quiet and explosive eruptions
300
What is volcanic activity?
Volcanic activity is the force which adds new rock onto existing land and forms new islands.
300
Define Lava
Lava is magma, but it is magma that has reached the surface.
400
Where does magma come from?
The Asthenosphere.
400
What is the Ring of Fire?
The Ring of Fire is a major volcanic belt that is a bunch of volcanoes that rim the Pacific Ocean.
400
What is a hot spring?
A hot spring is groundwater, which is heated by a nearby body of magma, rises to the surface and turns into a natural pool.
400
How do you pronounce pahoehoe?
(Judge by pronunciation)
400
Define Island Arc
An Island Arc is a string of islands
500
What is silica made of?
Oxygen(O) and Silicon(Si).
500
Around how many volcanoes are active on the continents of the earth? (not underwater)
Around 600
500
What are 3 hazards of volcanic eruptions?
Ash, lack of sunlight, lava, fires, etc. (Judge the 3 answers given)
500
Name the biggest island or island group created by hot spot volcanoes?
What is Hawaii?
500
Define Hot Spring.
A hot spring forms when groundwater that is heated by a nearby source of magma.