Term
|
Definition
| A weak spot in the crust where molten material, or magma, comes to the surface. |
|
|
Term
|
Definition
| molten mixture of rock-forming substances, gases, and water vapor from the mantle. |
|
|
Term
|
Definition
| when magma reaches the surface, it is called lava. When lava cools it forms solid rock |
|
|
Term
|
Definition
| a major volcano belt around the Pacific Ocean |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| pocket of magma below the surface |
|
|
Term
|
Definition
| a long tube that connects the magma chamber to the surface |
|
|
Term
|
Definition
| an exit that Molten rock can also leave out of |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Bowl-shaped around the main vent at the top of the volcano |
|
|
Term
|
Definition
| determines if the volcano eruption is quiet or explosive |
|
|
Term
|
Definition
| Small pieces of broken off lava |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| Large pieces of broken off lava |
|
|
Term
|
Definition
| when explosive eruption hurls out ash, cinders, bombs, and gases |
|
|
Term
|
Definition
| a volcano that is erupting or is showing signs of erupting in the near future |
|
|
Term
|
Definition
| sleeping volcano – could awake in the future and become active, but has been asleep for many, many years. |
|
|
Term
|
Definition
| Dead and is unlikely ever going to erupt again |
|
|
Term
|
Definition
| groundwater heated by nearby body of magma rises to the surface and collects in a natural pool |
|
|
Term
|
Definition
| when hot water and steam are trapped the pressure can build until the mixture sprays above the surface |
|
|
Term
|
Definition
| the large hole filled with pieces of the once active volcano |
|
|
Term
|
Definition
| Looks like a giant tooth in the ground, forms from harden magma in a pipe |
|
|
Term
|
Definition
| Magma that forces itself across layers |
|
|
Term
|
Definition
| Magma squeezes between the layers of rock |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Steep, cone-shaped hill or mountain |
|
|
Term
|
Definition
| Tall, cone-shaped with alternating layers of lava and ash |
|
|
Term
|
Definition
| formed from Lava flowing from long cracks, and the thin, runny lava travels far before cooling |
|
|
