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Volcanos
| Term | Definition |
|---|---|
| 1.Volcanos | A weak spot in the crust where molten material, or magma, comes up to the surface |
| 2.Lava | When magma reaches the surface |
| 3.Magma | A molten mixture of rock-forming substances, gases, and water from the mantle |
| 4.Ring of Fire | Many volcanoes that rim the Pacific Ocean |
| 5.Hot Spot | An area where material from deep within the mantel rises and the melts, forming magma |
| 6.Shield Volcano | When thin layers of lava pour out of a vent and make layers on top of one another until it slowing builds a wide, sloping moutain |
| 7.Composite Volcano | When ash, cinders, and bombs pile up around the vent, forming a steep, cone-shaped hill or mountain |
| 8.Cinder Cone Volcano | When ash, cinders, and bombs form alternating layers that build up into a tall, cone-shaped, mountain |
| 9.Sill | When magma squeezes between layers of rock and hardens |
| 10.Dike | When magma forces itself across rock layers and hardens |
| 11.Batholith | A large body of magma cools inside the crust |
| 12.Lava Plateau | When runny lava flows out of cracks of volcanoes and travel a long distance before it cools. Then after millions of years the layers build up over a large area |
| 13.Extinct | Unlikely to erupt again |
| 14.Dormant | Volcanoes that are quiet, but could awaken in the future |
| 15.Active | Erupting or showing signs of erupting in the near future |
| 16.Element | A substance that cannot be broken down |
| 17.Vicosity | A measure of a resistance in a fluid |
| 18.Silica | A substance that is in magma that makes magma different |
| 19.Pahoehoe | Hot, Light color lava that moves fast |
| 20.AA | Cool, dark color lava that moves slowly |
| 21.Compound | A thing that is composed of two elements/ a mixture |
| 22.Volcanic Ash | Fine, rocky speaks of ash made from a volcano |
| 23.Magma Chamber | A pocket that collects magma in the volcano |
| 24.Crater | A bowl-shaped area that may form at the top of a volcano around the central vent |
| 25.Vent | The opening that molten rock and gas leave the volcano |
| 26.Pipe | A long tube in the ground that connects the magma chamber to Earth's surface |
| 27.Caldera | A hole left by the collapse of a volcanic mountain |
| 28.Hotspring | When ground water is heated by a nearby body of magma rises to the surface and collects in a natural pool |
| 29.Geyser | A fountain of water and stream that erupts from the ground |
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