1.  Get your computer and your journal  Find Mrs. Staats’ website  Open the Earthquake Notes  Complete  Go to Quizlets and take the Earthquake and volcano quizlet.

2.  Earthquakes produce three Types of Waves that behave differently through different materials. Earthquakes are the buildup of stress or tension in rocks or faults.

3.  http://www.youtube.com/watch?v=VSgB 1IWr6O4&feature=player_embedded http://www.youtube.com/watch?v=VSgB 1IWr6O4&feature=player_embedded 3 types of waves to study Primary Waves (P) Secondary Waves (S) Surface Waves

4.  Under the surface of the Earth  Where earthquakes originate.  P waves and S waves are released from here.

5.  Point where energy is released from the focus.  Travels the FASTEST of the waves  Move through solid and liquid layers of Earth  PUSH and PULL rock back and forth motion  LONGITUDINAL WAVES

6.  Moves out from earthquake focus  Moves SLOWER than primary waves  Can ONLY move throug SOLID rock  Moves at right angles/rocks move up/down and side to side  TRANSVERSE WAVES

7.  Form when P and S waves reach the SURFACE  Can cause the ground to shake making rock sway from side to side and ROLL LIKE THE OCEAN.  Explain how scientists use data from seismic waves and Earth’s magnetic field.

8.  the epicenter is the point on Earth’s surface directly above where the energy is released in an earthquake; energy that reaches the surface is greatest at this point.

9.  The energy spreads outward in all directions as vibrations called seismic waves. Seismic waves can be measured and recorded by a seismograph.  The vibration record, called a seismogram, looks like jagged lines on paper.

10.  Measuring the time between the arrival of the P and S waves determines the distance between the recording seismograph and the earthquake epicenter.

11.  Triangulation identifies the epicenter of an earthquake. The location of an earthquake’s epicenter is found by plotting circles on a map from the records of three seismograph stations and finding the point where the three circles intersect. 

15.  Scientist use the principle that speed and direction of a seismic wave depends on the material it travels through.  Because earthquake waves travel faster through the mantle than through the crust, scientist know that the mantle is denser than the crust.

17.  http://www.youtube.com/watch?v=1qbg 7orb1lc&feature=player_embedded http://www.youtube.com/watch?v=1qbg 7orb1lc&feature=player_embedded  http://www.youtube.com/watch?v=sA6o Z4YgKCA&feature=player_embedded http://www.youtube.com/watch?v=sA6o Z4YgKCA&feature=player_embedded

18.  EPICENTER – the point on Earth’s surface directly above where the energy is released in an earthquake.

19.  * energy spreads outward in all directions as vibrations.. Measured by seismograph  Seismogram –vibration record  Measuring the time between the arrival of the P and S waves determines the distance..  Triangulation-identifies the epicenter of an earthquake. Find where 3 circles intersect.

23.  Forms- molten rock cools and hardens  Cooling taking place slowly- intrusive  Cooling taking place rapidly- extrusive

24.  Forms when rocks are changed into different kinds of rocks  How? Heat, pressure, heated, squeezed, folded, chemically changed by hot fluids

25.  Forms by compaction/cementation of rock pieces, mineral grains, shell fragments  Sediments- rock pieces, minerals, fragments formed by weathering or erosion  Chemcial change by water

28.  Two type of properties  Physical properties: hardness, luster, color, texture, density  Chemical Properties: ability to burn, reactivity with acids

32.  Minerals – natural, solid, building blocks for rock  Ores – mined for useful metals and nonmetals  Fossil Fuels – come from remains of living things: give off energy when they burn.