FOURTH QUARTER

 

UNIT 7: NATURAL DISASTERS

 

II. UNIT 7: Natural Disasters

 

Time: Entire quarter

 

a. Unit Introduction:

 

b. Objectives:

 

  1. Describe how seismic waves carry energy from an earthquake away from the focus, through Earth’s interior and across the surface and the damage they cause.
  2. Describe how volcanoes form when magma erupts through the crust and reaches the surface.

 

c. Essential Questions:

 

  1. How does the energy of an earthquake travel through Earth?
  2. How can earthquake safety be increased and earthquake damage reduced?
  3. How does the change in pressure and expansion of gases inside affect the magma inside a volcano?
  4. How does the silica content of magma affect the type of landform that is formed?
  5. How do volcanic belts form along plate boundaries?

 

d. Essential Concepts

 

  1. Energy from an earthquake travels in waves.  The waves can produce severe movement in the Earth’s crust and surface.
  2. Scientists use level of damage, size of waves and amount of energy released to rate the magnitude of an earthquake.
  3. Scientists use seismic waves to locate an earthquake’s epicenter. 
  4. Data collected from seismographs and fault-monitoring devices is used to monitor active faults and predict earthquakes.
  5. When a volcano erupts, the force created by the expanding gases drives the magma to either flow out or explode out of the volcano.
  6. Scientists classify eruptions according to the amount of silica found in the magma.  Different types of landforms are created by different types of eruptions.
  7. Earth’s crust often fractures along plate boundaries allowing magma to reach the surface.

 

e. Essential Skills

 

 

 

f. Vocabulary


 

  1. focus
  2. epicenter
  3. p wave
  4. s wave
  5. surface wave
  6. magnitude
  7. seismograph
  8. seismogram
  9. liquefaction
  10. aftershock
  11. magma

 

  1. lava
  2. viscosity
  3. silica
  4. quiet eruption
  5. explosive eruption
  6. pyroclastic flow
  7. shield volcano
  8. cinder cone volcano
  9. composite volcano
  10. hot spot
  11. Ring of Fire

 

 

Science Of Natural Disasters

 

ACTIVITIES: Based on “EarthQuake!” Event Based Science Russell G. Wright)

 

Investigate Earthquake Lab Activity, Excel Chart for Graphing

 

Plate Tectonics

 

ring of fire

 

MID-OCEAN RIDGES

 

San Andreas Fault

 

Mapping Earthquakes and Volcanoes

 

volcanic eruptions pics

 

ConvectionLab

 

What is Liquefication Lab

 

Solid to Liquid in the Blink

 

LOMA PRIETA EARTHQUAKE

 

IN THE NEWS ACTIVITY Earthquake

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EXAMPLE:

Landslides:

http://ublib.buffalo.edu/libraries/projects/cases/landslide_notes.html

 

LANDSLIDE MOVIE:

The Portuguese Bend Landslide Info

Slippery Slope Landslide Activity

 

RESOURCES

Event Based Science Modules: Volcano, Earthquake, Asteroid, Hurricane

 

Online resources:

National Center for Case Study Teaching in Science http://ublib.buffalo.edu/libraries/projects/cases/case.html

 

Case Study Teaching in Science Bibliography:

http://ublib.buffalo.edu/libraries/projects/cases/teaching/casebiblio.html

 

FORCES OF NATURE

http://library.thinkquest.org/C003603/english/index.shtml

 

 

YaleNH Teacher Institute Unit on Natural Disasters

http://www.yale.edu/ynhti/curriculum/units/2007/4/