Monday, January 28, 2013

Jan 28th/29th


Do Now:
The first 25 minutes of class was dedicated to measuring the density of air. The students of both classes needed a bit more time as they struggled with the pumps.

We shared our data on the board and learned a great deal about the density of air. It was scary at first, working with such numbers, but we quickly came to the realization that it makes perfect sense as we applied to it what we see in everyday life (waterfalls, the beach, drinking glasses.)

Following the discussion of the data, we read another article from our text about the Titanic. Many people are aware why the boat sank, but we were more concerned with understanding why the boat was able to float, even with a total mass around 66,000 tons (1 ton is roughly equal to 2,000 lbs.). We also know that steel is more dense than water and sinks. The Titanic had a steel frame. 

Students had homework. This packet is a good look at what the next quiz will look like. There is an extended answer portion to the quiz which isn't on the review, but the bulk of the points is on there. This assignment will due on the next class (EXCEPT FOR PD 6, WHO DID NOT HAVE THE DATA FOR THE DENSITY COLUMN. I TOLD THEM THAT WE WOULD DO IT FOR OUR DO NOW AND THE FIRST HALF OF CLASS WEDNESDAY.)

I took a picture of the data for those 6th pd students that want  to get a head start.



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