Science quiz

• Inactive volcano:

  • Not currently active
  • May be dominant, extinct, or of uncertain inactive volcanic status
  • Example: Mount Kanlaon
• Active volcano:

  • Has had at least one eruption during the past 10,000 years
• Plinian eruption:

  • Excessively explosive type of eruption of gas and pyroclastic material
• Phreatomagmatic eruption:

  • Violent eruption due to the contact between water and magma
• Strombolian eruption:

  • Period of weak to violent eruption characterized by fountain lava
• Phreatic/Hydrothermal eruption:

  • Steam-driven as hot rocks come in contact with water
• Shield volcano:

  • Formed by the accumulation of lava oozing out, creating a broad, slightly domed structure resembling a warrior's shield
• Composite volcano (Stratovolcano):

  • Large, nearly perfect sloped structure formed by the alternate solidification of both lava and pyroclastic deposits
• Cinder cone volcano:

  • Built from ejected lava fragments
  • Steep slope, wide crater
  • Most abundant of the three major volcano types
• Viscosity:

  • Measure of a fluid's resistance to flow
  • Describes the internal friction of a moving fluid
  • Fluid with high viscosity resists motion due to its molecular makeup and internal friction
• Silica:

  • Also known as silicon dioxide (SiO2)
  • Compound of the two most abundant elements in Earth's crust, silicon, and oxygen
  • Makes up 59% of Earth's crust
  • Main constituent of over 95% of known rocks
  • Silica gel used as a desiccant to remove moisture
• Caldera:

  • Volcanic crater formed when part of the crater wall collapses following an explosive eruption
• Magma:

  • Molten rocks inside the Earth
  • Mixture of molten and semi-molten rock beneath the Earth's surface
• Eruption:

  • Volcanic activity including spewing of molten rock, ash, and volcanic debris
• Weather

  It is the condition of the atmodphere at a specific place and time
• Climate

  It id the general pattern of weather in a certain area over a long priod of time
• Global warming

  Is an increase in the tempersture of earth's atmosphere
• Enchanced greenhouse effect

  Happens when there is too much gases in the atmosphere
• Temperature

  It id the degrees of hotness or coldness of a place
• El nino

  Is a reacurring natural phenomenon that producrs extreme climate conditions nn diffrent parts of the world