Preview

Active Earth- Jacaranda- Answers

Satisfactory Essays
Open Document
Open Document
577 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Active Earth- Jacaranda- Answers
Class: SOSE Yr: 9 Name: Fariha Ibnath Khan
1: Hot spot: Hot spot is a place away from the boundary where a trail of super-heated magma that rises up from the mantle and forces its way to the surface of the Earth.
Continental drift: Movement of the Earth’s continents comparative to each other by appearing to drift across the ocean bed.
Tectonic Plate: Large pieces of the Earth’s crust that float on the mantle. These plates are constantly moving and may crash into each other or slide or move apart from each other.
Continental Plate: Large sections of the surface of the Earth that move separately.
Shield Volcano: Volcanoes formed by viscous lava and have broad and flat sides. This happens due to the lava cooling slowly which lets it spread widely before cooling.
Magma: Molten or partly molten rock underneath the Earth’s surface.
Seismic Activity: Release of energy from the focus of an earthquake that spread outwards like waves.
2: Epicenter and focus: Epicenter is on the surface of the Earth and focus is below where the seismic activity starts.
Earthquake and volcano: Earthquakes are tremors or vibrations shaking the Earth due to release of energy and volcanoes are fissures that erupt molten lava.
Active and extinct volcano: Active volcanoes are volcanoes that have chances of erupting when extinct volcanoes don’t have chances of erupting anymore and haven’t erupted for over thousands of years.
Explosive and effusive volcano: Explosive volcanoes erupt gas-driven meaning gas trails the lava when effusive ones erupt lava straight.
3: The Hawaiian island formed when new volcanoes formed on top of hot spots which are now a different part of the plate. A chain of volcanic islands were later formed and that is how Hawaii was formed. Sketch is on the last page of the assignment.
4: The plate sits on the largest hot spot. Kilauea might also be connected to the world’s most active volcanoes. It’s being watched closely

You May Also Find These Documents Helpful

  • Good Essays

    When lava that is in cinder cone is highly charged with gas bubbles erupts from a vent under pressure, it tends to shoot straight up into the air.…

    • 963 Words
    • 4 Pages
    Good Essays
  • Good Essays

    There are two types of volcanoes, strato-volcanoes and shield volcanoes. Both are characterized differently, for example, strato volcanoes have sleep slopes, shaped like a tall narrow cone, but shield volcanoes have gentle slopes, shaped like a low, wide cone. The eruptions can be devastating, an example would be mount vesuvius,which erupted in AD 79, killing over 10,000 to 25,000.…

    • 341 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Fig 2. Shows the development of a magma plume, such as the one that has created the Hawaiian-Emperor seamount chain, which contains over 80 undersea volcanoes and is over 5,800km in size, the constant rising plume and the lack of additional material as seen in Fig 1. means that the volcano normally produce nonexplosive eruptions. A example of a regular volcanic eruption caused by a ‘Hawaiian’ Volcano is Kīlauea which has been continuously erupting since January 1983, and has causes no loss of life.…

    • 978 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Volcanoes exist all around the world. They can be very dangerous or unharmful. Some may seem unharmful because of their appearance, but they really are harmful to humans and wildlife. Volcanoes occur when two tectonic plates collide or, when there is a hot spot in the crust and constructive forces build a volcano. There are two types of volcanic flows pyroclastic and mud flows. Pyroclastic volcanoes occur when the amount of magma in the chamber collects and the pressure increases causing the volcano to erupt. Mud flows are kind of like pyroclastic accept the lava in the chamber doesn't collect and cause an eruption it just flows out the top of the volcano.…

    • 368 Words
    • 2 Pages
    Good Essays
  • Good Essays

    A volcano is a vent in the Earth from which molten rock (magma) and gas erupts. The molten rock that erupts from the volcano also called lava forms a hill or mountain around the vent. There are many types of eruptions that are all different. There are some eruptions are quiet, with lava slowly oozing from a vent. Other eruptions are very violent, with lava and other materials being hurled hundreds of miles into the air. But lava is not the only thing that comes out of the vent at the top of the volcano gases also come out from within the earth. The gas comes out with the huge amounts of dust and ash that rise into the sky that can be seen from kilometres…

    • 329 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Volcanic Landforms

    • 719 Words
    • 3 Pages

    Volcano is essentially a fissure or vent (opening) which serves as an outlet for hot magma from beneath the Earth’s crust. The hot liquid magma coming out in the form of lava (most commonly molten basalt) is potential of shaping different landforms on earth crust.…

    • 719 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Geology Chapter 5

    • 580 Words
    • 3 Pages

    An effusive eruption occurs when the magma feeding the volcano is hot and mafic causing it to have low viscosity. An explosive eruption occurs when pressure builds in a volcano. It may be a small explosion like a basaltic eruption where the gas builds up and suddenly escapes or it can be a large explosion which can be triggered by many things, such as cracks in the flank of an island volcano where water enters the magma chamber and turns to steam, or if a very viscous magma plugs the vent and the pressure increases so much it cracks parts of the volcano and…

    • 580 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    Geography

    • 960 Words
    • 4 Pages

    Most volcanoes are formed by the movement of tectonic plates on the surface of the earth. These plates are basically huge pieces of rock that ‘float’ on the mantle (a layer of the earth that is sort-of liquid rock). The tectonic plates are in constant motion, albeit very slow motion. They sometimes move toward each other, other times they’ll move apart, and still other times one will sink while the other rises above it.…

    • 960 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Volcanoes vary a great deal in their destructive power. Some volcanoes explode violently, destroying everything in a mile radius within minutes, while other volcanoes seep out lava so slowly that you can safely walk all around them. The severity of the eruption depends mostly on the composition of the magma.…

    • 7057 Words
    • 18 Pages
    Good Essays
  • Satisfactory Essays

    Mount Fuji

    • 516 Words
    • 2 Pages

    In this essay I will tell you about the main parts of a volcano and it's origin. The first main part I will tell you about is the magma chamber. A magma chamber is a large pool of molten rock, also called magma, sitting underneath the Earth's crust. The magma chamber can be more than three miles below the Earth's surface and the magma waits there for the pressure and gases to become too much to stay stable. The magma in the magma chamber is less tense than the mantle surrounding it, so it moves toward the surface of the Earth through cracks and flaws in the crust once a high enough pressure point is reached. Volcanic eruption is the result of magma reaching the Earth's surface.…

    • 516 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Most people think of volcanoes as large shaped mountains. But there are other kinds of volcanos - Wide Plateaus, fissure vents, and Bulging dome shapes. Common volcanic gases include -water vapor carbon dioxide sulfur dioxide Hydrogen fluoride Hydrogen chloride Hydrogen sulfide.…

    • 317 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    volcanoes

    • 461 Words
    • 2 Pages

    A volcano is an opening, or rupture, in the surface or crust of the Earth or a planetary mass object, which allows hot lava, volcanic ash and gases to escape from the magma chamber below the surface. The word volcano is derived from the name of Volcano, a volcanic island in the Aeolian Islands of Italy whose name in turn originates from Vulcan, the name of a god of fire in Roman mythology. The study of volcanoes is called volcanology.…

    • 461 Words
    • 2 Pages
    Good Essays
  • Good Essays

    • Vibrations in the earth’s crust that occur when strain in the crust is suddenly released by displacement along a fault line…

    • 1935 Words
    • 8 Pages
    Good Essays
  • Good Essays

    Volcanic Erruption

    • 594 Words
    • 3 Pages

    Lava domes- these are the volcanoes which came into origin by eruptions of lava with high viscosity. These volcanoes produce very violent and explosive eruptions. Their lava don’t travel large distances from the vent.…

    • 594 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Kilauea is one of the most active volcanoes on Earth, and it is the youngest. Kilauea stands just under 4,200 feet tall above sea level at its highest point.…

    • 921 Words
    • 4 Pages
    Good Essays