About This Chapter
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- Identify which concepts are covered on your volcanoes homework.
- Find videos on those topics within this chapter.
- Watch fun videos, pausing and reviewing as needed.
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Topics from your homework you'll be able to complete:
- Volcano classifications and types
- Gases released during volcanic eruptions
- Flow of pyroclastic materials
- Formation of volcanic landforms
- Lava flow, pyroclastic surge and tephra
- Landslides and lahars
1. What is a Volcano? - Definition & Eruptions
Volcanoes are vents that allow lava, rock fragments and gases to escape from layers beneath the earth's surface. Learn how volcanoes form both on land and underwater and why they erupt.
2. Types of Volcanoes: Shield, Cinder Cones & Composite Cones
The earth ejects lava, rock fragments, hot vapor and gases during volcanic eruptions. Volcanoes vary based on size, shape, composition and eruptive style. Learn about the different types of volcanoes, such as shield, cinder cone and composite cone.
3. Volcanic Eruption: Gases Released & Their Effects
Volcanic eruptions emit water vapor and toxic gases into the atmosphere. Learn about the gases emitted from an erupting volcano, such as carbon dioxide, sulfur dioxide, hydrogen sulfide, hydrochloric acid and carbon monoxide and their effects in this video lesson.
4. The Flow of Pyroclastic Materials
A pyroclastic flow is the flow of volcanic ash, gases and fragments following a volcanic eruption. Learn about the types of pyroclastic flows and the materials that make them up and contribute to their fluid nature.
5. Volcanic Landforms: Types & Formation
Volcanic eruptions pull materials up from deep within the earth to form various volcanic landforms, such as lava domes, lava plateaus, fissure eruptions, craters and calderas. Learn about these volcanic landforms and how they are created.
6. Lava Flow, Pyroclastic Flow, Pyroclastic Surge & Tephra: Preventing Volcanic Hazards
Volcanic hazards are any type of volcanic process that leads to destruction or threatens life. Learn about specific volcanic hazards including lava flows, pyroclastic flows, pyroclastic surges and tephra and measures used to prevent or reduce damage
7. Volcanic Hazards & Prevention: Landslides, Lahars & Tsunamis
Volcanic hazards are any volcanic process that can damage property or threaten life. Learn about volcanic hazards, such as landslides that can trigger lahars and tsunamis, and ways to prevent these hazards from threatening people's lives.
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Other chapters within the Middle School Earth Science: Homework Help Resource course
- Earth's Spheres & Structure: Homework Help Resource
- Understanding Plate Tectonics: Homework Help
- Understanding Earthquakes: Homework Help
- Rock Deformation & Mountain Building: Homework Help
- Shaping the Earth's Surface: Homework Help Resource
- Thermal Energy: Homework Help
- Energy in the Earth System: Homework Help Resource
- Ecology & Ecosystems: Homework Help
- Earth's Energy Resources: Homework Help
- Earth's Material Resources: Homework Help
- Earth Science Investigation & Experimentation: Homework Help Resource