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Volcano unit 3 module 1 (Grade 9 Science)
- 1. Unit 3 module1 (Earth and Space) Jasmin C. Tawantawan Grade 9 Science
- 2. Mount Apo (Kidapawan,North Cotabato)
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- 5. •What have you observein the given picture?
- 6. Volcano •–is an openingin the Earth’s surface where molten rocks, smoke, gases, and ashes are erupted.
- 7. Classification of Volcanoes •Activevolcanoes - are those that have a record of eruption with the last 600 years of those that erupted 10, 000 years ago based on analyses of their its materials.
- 8. Inactive volcanoes –are those that have not erupted for the last 10, 000 years ago and their physical form is being changed by agents of weathering and erosion through formation of deep and long gullies.
- 9. Three general volcanictypes according to the shape of their cones; •Shield cones. •Cinder cones •Composite cones
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- 21. Viscosity •– is theproperty of the material’s resistance to flow. It also described as the liquid’s thickness and stickiness. The, more viscous and thicker the material is the greater is its resistance to flow. For instance, syrup is more viscous than water
- 22. Primary factors affectingthe magma’s viscosity in different ways. •Temperature of magma affects its viscosity. •The composition of magma affects its viscosity. •The amount of gases contained in the magma affects its viscosity.
- 24. Types of volcaniceruptions •Phreatic or hydrothermal •Phreatomagmatic •Stromboli an •Vulcanian •Pinian
- 25. Energy from thevolcano Mak-Ban Geothermal Power Plant in Laguna
- 26. Geothermal •It is asource of energy that comes from a heat in the Earth’s interior.
- 27. It is generatedin two ways: •Geothermal power plants •Geothermal heat pumps