Science 10:   To begin we completed a short review of energy concepts that we learned before the holiday.  We watched this clip about photovoltaic cells that can produce electricity.  A short design challenge followed, where you were asked to find ways to store solar energy (gained during the day) so that customers have electricity at night.  Thanks for saving the world!  This clip shows how solar energy can be stored for night-time energy demand.  We completed the review assignment titled 18.1, but this is not due Wednesday. 

Science 8:  We began with a review of atomic structure, then we prepared our lab report and kit of solutions for Lab 10-3.  We will do the lab procedure on Thursday.  We finished by determining the density of a very heavy box of books.  So heavy, and such a chore to carry, but it turned out to have a low density:  0.52 g/mL.  It would definitely float in water.  

Chemistry 11:  After a short review of mole ideas we learned how to use the dilution equation.  Everyone was assigned a dilution to make, similar to the type of work our lab tech performs to reduce the concentrations of solutions we buy from our reagent supplier.  Next was the Moles Practice Test, and only the written response section is due tomorrow.  We will have a test on the moles unit (Chapter 5 from Hebdon, and Labs 4B and 4D from Heath) on Friday.

Science 9:  We took notes on Current Electricity, then we read pages 212 to 216 in our textbook.  We began the Electricity booklet, but this is not due on Thursday.  We also used multimeters to determine the voltage for a number of different types of batteries and cells.  We recorded our data in a 4 column table, and we will finish this on Thursday.  No work is due next class.