Tuesday April 17, 2012
DO NOW:
 Hand in any owed work (signed/ corrected quizzes, section assessments from last week,
seafloor spreading essay revisions if you are done…)
 Please take all papers from your folder and organize in your binder (at this point all work
we are working on should go in your “earth” section
NEXT: Go to the Virtual Earthquake link (under the Earthquakes link on Mrs. Magrini’s page)
Virtual Courseware: Earthquake
http://www.sciencecourseware.com/eec/Earthquake/
 Read through the tutorials first. Answer the questions below in complete sentences in your
ISN. (Title your entry Virtual Earthquake”)
The S-P Interval tutorial (answer these on the LEFT SIDE):
1. What is SP Lag time?
2. Which wave arrives at the seismic station first?
3. How do geologists measure SP lag time?
4. Describe how the seismograms looked different in the one station vs. the two station
example.
Latitude and Longitude tutorial (answer these on the RIGHT SIDE):
1. What is the basic unit of measurement for latitude and longitude?
2. How much is each degree of latitude?
3. 0° latitude is called ________________.
4. 0° longitude is called ________________.
5. 180° from the Prime Meridian east and west brings you to the
______________________.
6. Latitude and longitude lines are spaced __________ apart.
7. Each degree can be further divided into _______________. Each minute can be further
divided into ____________________.
DEMO: whole class demonstration on how to complete the travel time activity.
Travel Time Activity
 From the main menu, choose Travel Time (under Main Activities). Read all directions and
hints!!
 Read the background and assignment
 Complete the Online activity!
 Print your journal and tape into your ISN.