1 / 8

Understanding Volcanoes: Key Concepts and Definitions

Explore the fundamentals of volcanoes - from magma to eruptions and volcanic structures. Download the presentation to test your knowledge! Study the picture to identify and label parts of a volcano.

sandersen
Download Presentation

Understanding Volcanoes: Key Concepts and Definitions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ACTIVITY No. 1 DIRECTIONS: Read the following and answer the activity below. The some of the answers are not directly stated in the slides. Just familiarize the picture below. For you to answer, just download the powerpoint presentation and edit the file. Reattach the file and send it to the admin. Thank you and God bless.

  2. See this picture. Observe the labels and familiarize it’s name.

  3. The Word Volcano: The word volcano comes from the Roman god of fire, Vulcan. Vulcan was said to have had a forge (a place to melt and shape iron) on Vulcano, an active volcano on the Lipari Islands in Italy. 

  4. A volcano is a place on the Earth's surface (or any other planet's or moon's surface) where molten rock, gases and pyroclastic debris erupt through the earth's crust. Volcanoes vary quite a bit in their structure - some are cracks in the earth's crust where lava erupts, and some are domes, shields, or mountain-like structures with a crater at the summit. Magma is molten rock within the Earth's crust. When magma erupts through the earth's surface it is called lava.

  5. Lava can be thick and slow-moving or thin and fast-moving. Rock also comes from volcanoes in other forms, including ash (finely powdered rock that looks like dark smoke coming from the volcano), cinders (bits of fragmented lava), and pumice (light-weight rock that is full of air bubbles and is formed in explosive volcanic eruptions - this type of rock can float on water). Volcanic eruptions can cause great damage and the loss of life and property.

  6. Underline your answer on the slide. 1. What is the name of molten rock that erupts from volcanoes? MAGMA - LAVA - VENT 2. What is the name of molten rock within the Earth's crust? MAGMA - LAVA - VENT 3. What is the name of the tube through which molten rock flows? PARASITIC - CONDUIT - BASE 4. In which part of the Earth would you find a magma reservoir? CRUST - PARASITIC - CONDUIT 5. Composite volcanoes are made up of layers of lava and ______. CONDUIT - ASH - MAGMA

  7. 6. What is the name of a smaller vent-structure on the side of some volcanoes? SUMMIT - MAGMA RESERVOIR - PARASITIC CONE 7. What is the name of the bowl-like opening of a volcano? SILL - CRATER - ASH 8. Are ash clouds emitted from sills? YES - NO 9. What is the name of an opening through which molten rock and gases escape from a volcano? CONDUIT - VENT - FLANK 10. The sides of a volcano are called its flanks. YES - NO

  8. Based on the picture above, name these parts of the volcano.

More Related