Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 3 vocab
| Question | Answer |
|---|---|
| Volcano | A volcano is a weak spot in the crust where molten material, or magma, comes to the surface |
| Magma | Magma is a molten mixture of rock-forming substances, gasses, and water from the mantle |
| Lava | Lava is made when magma reaches the surface, and cools to solid rock after |
| Ring of fire | Our major volcanic belt is the ring of fire, which is made by the many volcanoes that rim the Pacific Ocean |
| Island arc | Volcanoes that had made islands on the water from lava cooling on the water to make solid rock |
| Hot spot | An area where magma deep within the mantle melts though the crust like a blow torch |
| Magma chamber | Beneath a volcano, magma collects in a pocket called a magma chamber |
| Pipe | A long tube in the ground that connects the magma chamber to earth's surface |
| Vent | Molten rock and gas leave the volcano through a vent, there is often on central vent in the middle |
| Crater | Is a bowl-shaped area that may form at the top of a volcano around the volcano's central vent |
| Silica | A material that is formed from the elements oxygen and silicon, is one of the most abundant material in earth's crust and mantle |
| Pahoehoe | Is fast moving hot lava |
| Aa | Cooler and slower-moving lava |
| Pyroclastic flow | Occurs when an explosive eruption hurls out ash, cinders, and bombs as well as gasses |
| Active volcano | Is a volcano that is erupting or is showing signs that it might erupt in the near future |
| Dormant volcano | It is a volcano that is not active now, but can become active at any time later |
| Extinct volcano | A volcano that is unlikely to ever erupt again |
| Hot spring | A hot spring forms when groundwater is heated by a nearby body of magma rises to the surface and collects into a natural pool |
| Geyser | A geyser is a fountain of water and steam that erupts from the ground |
| Geothermal energy | In volcanic areas, water heated by magma can provide a clean, reliable energy source, which is geothermal energy |
| Shield volcano | A wide, gently sloping mountain which is a shield volcano |
| Cinder cone volcano | A steep, cone shaped hill or mountain volcano |
| Composite volcano | Are tall, cone shaped mountains with layers of ash and lava all over it |
| Caldera | The huge hole left by the collapse of a volcanic mountain. |
Created by:
lightfootemas13
Popular Earth Science sets