Ring of Fire
The home to most of the world's earthquakes and volcanoes.
What is the Ring of Fire?
This type of lava is formed by thick, viscous lava, has a Hawaiian name, and is painful to walk on.
What is Aa?
A weak or thin place in the earth's crust where magma can reach reach the earth's surface as a volcano.
What is a hot spot?
Scientists use this tool to measure ground movement or shaking.
What is a seismograph?
These tiny droplets of magma spray out of explosive volcanic eruptions.
What is volcanic ash?
The Ring of Fire is located along this ocean's edges.
What is the Pacific Ocean?
This word is used to describe the thickness of a material.
What is viscosity?
A pool of molten rock below the earth's surface.
What is a magma chamber?
These orbiting objects capture aerial pictures of volcanoes and their destruction.
What are satellites?
This volcanic hazard could happen if a volcanic landslide occurs under the ocean, displacing a large amount of water.
What is a tsunami?
These pieces of the earth's crust sit on top of the mantle.
What are tectonic plates?
When molten rock cools and hardens, its density __________.
What is increases?
This broad, flat volcano is formed from thin, low-viscosity lava.
What is a shield volcano?
This type of instrument is used along with a satellite to measure a volcano's exact location.
What is GPS (Global Positioning System)?
This hazard occurs when hot ash and dust rush down the side of a volcano.
What is a pyroclastic flow?
What is extinct?
Volcanic eruptions that are explosive, will most likely have magma that is very viscous and high in _______.
What is silica?
This hot spot in the continental U.S. formed several calderas over the past 16 million years.
What is the Yellowstone Caldera / Hotspot?
A scientist collected a sample of lava and found that it was not very viscous. She predicted that this type of eruption will occur.
What is non-explosive (effusive eruption)?
This volcanic eruption resulted from an explosive lateral blast where a large chunk of the mountain fell off.
What is the eruption at Mt. St. Helens?
__________ from the movement of tectonic plates is responsible for most earthquakes and volcanoes.
What is friction?
To determine if two volcanoes are related or interconnected underground, scientists gather samples of lava and test their chemical _____________.
What is composition?
This Hawaiian volcano was once thought to be part of the larger Mauna Loa volcano. Upon further investigation of its lava, scientists determined it is a completely separate, independent volcano.
What Mt. Kilaeua?
A "hot spot trail" of calderas that formed from Nevada/Oregon to Wyoming over millions of years, demonstrates the fact that the earth is made up of moving ______________.
What are tectonic plates?
Explosive eruptions are more likely to produce pyroclastic flows, where non-explosive eruptions are more likely to produce _______________.
What are lava flows?