Intervention Material in Science: Types of Volcanoes
- 1. An Intervention Material In Science 9
- 2. Least Learned Competency JOHN FLORENTINO E. ECHON, TNHS
- 3. JOHN FLORENTINO E. ECHON Proponent, Taltal National High School LENIE N. ELAMPARO, Ed. D. Principal II, Taltal National High School A Strategic Intervention Material in Science 9 APRIL 2016 JOHN FLORENTINO E. ECHON, TNHS
- 4. GUIDECARD CINDER CONE Cinder Volcanoes are the simplest type of volcano. They are built from particles and blobs of congealed lava ejected from a single vent. Lava is blown into the air, which breaks into small fragments that solidify and fall as cinders around the vent to form a circular or oval cone. Most cinder cones have a bowl-shaped crater at the summit, and rarely rise more than a thousand feet or so above their surroundings. COMPOSITE Typically, composite volcanoes are steep-sided, symmetrical cones of large dimension built of alternating layers of lava flow, volcanic ash and cinders. Composite volcanoes will rise as much as 8,000 feet above their base. Most composite volcanoes have a crater at the summit, which contains a central vent or a clustered group of vents. One essential feature about composite volcanoes is the conduit system. This is when the magma from a reservoir deep in the Earth's crust rises to the surface. This type of volcano is built by the accumulation of materials erupted through the conduit, which increases in size as lava, cinders, and ash are added to its slopes. SHIELD Shield volcanoes are built almost entirely of fluid lava flow. Flow after flow pours out in all directions from a central summit vent, which builds a broad, gently sloping cone - much like a warrior's shield or a plateau. Shield volcanoes can be easily identified because they are tall and broad, with flat, rounded shapes. The lava is not accompanied by pyroclastic materials, which makes shield volcanoes relatively safe (as shown in this picture) of scientists monitoring the eruption. Mauna Loa, the largest of the shield volcanoes, is 13,677 feet above sea level, which means it rises over 28,000 feet above the deep ocean floor, and would be the world’s tallest mountain if much of it were not underwater. Famous shield volcanoes include Mauna Loa, Kilauea, (two of the world's most active volcanoes), and Olympus Mons of Mars. THE THREE TYPES OF VOLCANOES JOHN FLORENTINO E. ECHON, TNHS
- 5. VOLCANO LOCATION COMPOSITE SHIELD CINDER CONE Mt. Pinatubo Mount Hood Kilauea Paricutin Mount Cotopaxi Mount Saint Helens Mount Rainier Mauna Loa Mount Fuji Mount Shasta Mt. Etna ACTIVITYCARD I. Classifying Volcanoes Use online resources to find the location and classification of the following volcanoes: JOHN FLORENTINO E. ECHON, TNHS
- 6. 1. Draw a Venn diagram showing similarities and differences between the three types of volcanoes. Put the Venn Diagram on the back of this paper. ASSESSMENTCARD JOHN FLORENTINO E. ECHON, TNHS
- 7. Draw a Venn diagram showing similarities and differences between the three types of volcanoes. ENRICHMENTCARD JOHN FLORENTINO E. ECHON, TNHS