“The car with 5 washers on it traveled 2.56 m.” This statement is an example of a(n)_____observation. Qualitative The amount of matter in an object is the mass If an object’s density is 0.4 g/ml, the object will __float___ in water. How is density calculated? Mass / Volume What two instruments would you use to find the density of an irregular shaped object? Triple beam balance, graduated cylinder Use the picture to the right to choose the BEST answer. Which layer of the Earth is least dense? crust Which layer is composed of basalt or granite? crust The asthenosphere is part of which layer of Earth? mantle Which layer would stop an S wave? Outer core Describe in detail the structure of the crust? The distance from the inner core to the surface of the earth is approximately 5,200 kilometers. The large amount of material surrounding the inner core places tremendous pressure on it. This pressure is one factor that causes the inner core to be what phase state of matter? solid Hot materials rise (less dense) and cool materials fall (more dense) describes this current which exists in the mantle. convection What is the correct order starting with the Earth’s surface, of the layers of the Earth? Crust, mantle, outer core, inner core In trying to determine the properties of the core of the earth, scientists use seismic wave behavior. They know that P-waves will travel through solids and liquids, but s-waves will not travel through liquids. They determined that if both waves went through the core, then it was completely solid, but if the S-wave did not travel through all of the core, then it is liquid . Which type of wave caused by an earthquake does the most above-ground damage? surface What type of waves travel the fastest, move through both the solid and liquid layers of the Earth and move out from the earthquake focus? P wave Since earthquake waves travel out in all directions from the focus of the earthquake, scientist can identify the location of the epicenter of an earthquake by comparing readings from at least how many different seismograph locations? 3 The identification of the epicenter of an earthquake is called triangulation During an earthquake, energy spreads outward in all directions as vibrations called Use the diagram below to answer questions below Letter B represents the epicenter Letter A represents the focus What is the correct sequences of the different wave arrivals from first to last? P, S, surface Use the diagram below to answer questions What causes the up-and-down wiggles on the seismogram show above? Seismic waves Which set of waves are probably the S waves? B Which set of waves are the P waves? A What type of seismic wave is being recorded by the seismograph in the diagram? P How do rock particles move during the passage of a P wave through the rock? back and forth – like a Slinky – in their travel direction, but do little damage as they only move buildings up and down. Earthquakes can occur with _________ faulting. ALL If a P wave were to go from a solid to a liquid - what would happen to its velocity? Slow down How do rock particles move during the passage of a S wave through the rock? transverse waves because they vibrate the ground in a the direction "transverse", or perpendicular, to the direction that the wave is traveling. The variable that you change in the experiment. Also called the manipulated variable. independent What is the correct measurement of liquid in the graduated cylinder pictured above? 25mL What is the total mass on the triple beam in the above diagram? 172g A cross section of Earth is shown below. Which labeled part is thought to be composed primarily of iron and nickel? 4 Which of the three recording stations was closest to the epicenter of the earthquake, based on the seismograms shown below C Danielle wants to test the rust-proofing ability of three paints. Three sets of ten iron rods were painted with three different paints. The painted rods were then allowed to weather outside for four weeks. The appearance of the rods was recorded each week. The dependent variable is the…amount of rust Faults are places in the Earth where the rock breaks due to forces. What type of fault is caused by compression forces? normal http://science.howstuffworks.com/nature/natural-disasters/earthquake3.htm Use the information and diagrams to answer questions below Diagram D represents the San Andreas fault in California. What type of stress is placed on the rocks along the San Andreas Fault? What type of fault is the San Andreas fault? Strike-slip A reverse fault is caused by this type of stress. compression The type of force that pull rocks apart to create a normal fault is tension Most of earth’s mass is contained in the: mantle What is the approximate time difference between the P-waves and the S-waves on the seismograph reading? 210s