Science 8:  We began with a review of the continents and oceans, because we are doing the Geology Unit Last.  We took notes on Seismology, and we practiced being P and S waves by walking across the classroom with a partner, ensuring that the first person was about twice as fast as the second half.  We read from an old Science Probe 9 text about Earthquakes, and we did Activity 10E and 10F (all procedure, and discussion questions # 1-3).  In the second half we went to the track and paced out 100 m.  We created a table to calculate the steps needed for 10m, 1 km, 1000 km, and 40 000 km.  It was important that large numbers were written in batches of 3 digits (from the right end).  Commas are not used in Science numbers.  Like this:  "The world is about 40 000 000 m in circumference.".  Our last task was to find an epicenter for an earthquake.  We started with seismograms from 5 cities, and we measured the arrival time for P and S waves.  On Friday we will use a compass to triangulate the data and find the epicenter.  Wow, what a terrific class - you accomplished a lot!  Click here to see the assignment log.