Pptx Volcanic Eruptions Chapter 9 Section 1 Volcanic Eruptions Chapter 9 volcanoes. volcanic eruptions. chapter 9 section 1. volcanic eruptions. a volcano is a vent or fissure in the earth’s surface through which molten rock and gases are expelled. molten rock is called magma. magma that flows onto the earth’s surface is called lava. 12 what erupts from a volcano nonexplosive eruptions nonexplosive eruptions –lava – liquid magma that flows from a volcanic vent explosive eruptions explosive eruptions –pyroclastic material – forms when magma is blasted into the air and hardens over years or during the same eruption a volcano’s eruption may alternate between lava and.
Chapter 9 Volcanoes Pdf Volcano Types Of Volcanic Eruptions Chapter 9 section 1 volcanic eruptions bellringer make a labeled drawing showing what happens when a volcano erupts. then describe the photographs on pages 156 and 157 in your textbook. why do the characteristics of volcanic eruptions vary?. What erupts from a volcano. nonexplosive eruptions. lava – liquid magma that flows from a volcanic vent. explosive eruptions. pyroclastic material – forms when magma is blasted into the air and hardens. over years or during the same eruption a volcano’s eruption may alternate between lava and pyroclastic eruptions. The parts of a volcano include the crater, pipe, cone, and vent. there are three main types of volcanoes: composite strato volcanoes, shield volcanoes, and cinder cone volcanoes. volcanic eruptions can have both beneficial effects like adding nutrients to soil or creating new islands, and harmful effects like releasing aerosols or abandoning land. The key to whether an eruption will be explosive lies in the silica, water, and gas content of the magma. section 1 volcanic eruptions chapter 9 what makes up magma?, continued water and magma are an explosive combination if the water content of magma is high, an explosive eruption is more likely.
Chapter 9 Volcanic Eruptions Flashcards Quizlet The parts of a volcano include the crater, pipe, cone, and vent. there are three main types of volcanoes: composite strato volcanoes, shield volcanoes, and cinder cone volcanoes. volcanic eruptions can have both beneficial effects like adding nutrients to soil or creating new islands, and harmful effects like releasing aerosols or abandoning land. The key to whether an eruption will be explosive lies in the silica, water, and gas content of the magma. section 1 volcanic eruptions chapter 9 what makes up magma?, continued water and magma are an explosive combination if the water content of magma is high, an explosive eruption is more likely. Volcanic eruptions chapter 9 section 1. volcanic eruptions • volcanoes – areas of earth’s surface through which magma and volcanic gases pass • in seconds a volcanic eruption can turn an entire mountain into a cloud of ash and rock • helps form fertile farmland • create some of the largest mountains on earth. Volcanic eruptions chapter 9 section 1. volcanic eruptions volcanoes – areas of earth’s surface through which magma and volcanic gases pass volcanoes. It outlines the main types of volcanic eruptions and discusses three key reasons for eruptions related to magma density differences, gas pressure, and new magma injection. the document concludes with safety tips, advising staying away from active volcanoes and knowing evacuation plans, and outlines precautions during an eruption like wearing. Volcanic eruptions notes by: mrs. hudson. objectives: distinguish between non explosive and explosive volcanic eruptions. identify the features of a volcano.