Chemistry 12:  Today we reviewed the definition of reaction rate, and discussed increasing the rate of reaction while lighting a fire (kindling provides surface area and heats up more easily, blowing on it increases the concentration of O2 at the reaction site, and a growing fire provides it own mechanism for increasing the temperature).  We also did Lab 7 - complete the calculations for Thursday.  We also reviewed the answer key to the Rates of Reaction WS from Tuesday. Click here to see the assignment log.  

Science 8:  We learned about the kinetic molecular theory, and wrote some brief notes on Phase Changes before reading pages 246 to 249.  Due next class is page 249 # 1-5 in sentences.  This animation helps with understanding phase changes.  

Science 10:  We reviewed atoms, molecules, elements, compounds, pure and mixture using a number of animations.  After observing some elements, compounds, and mixtures, we readpage 98 to 105 in our textbook.  We started page 100 # 1-4, but this is not due on Thursday.

Tuesday, January 28, 2025

Chemistry 12:  After going through the course outline we reacted a penny in nitric acid and reviewed all the ways to determine the rate of reaction.  We went with mass of Cu reacted per second, then performed a trial.  We also brainstormed ways to speed up the reaction.  The Rates WS was completed, and is due next class.  

Science 8:  After going through the course outline we reviewed all the classroom safety equipment and the fire alarm exit procedure.  We drew a map of room 313, showing all the safety equipment, nearest fire pull, nearest fire extinguisher, and the fire exit route.  In the last 20 minute we read through a list of science safety rules and categorized them.

Science 10:  After going through the course outline we reviewed all the classroom safety equipment and the fire alarm exit procedure.  We drew a map of room 313, showing all the safety equipment, nearest fire pull, nearest fire extinguisher, and the fire exit route.  In the last 20 minute we read through a list of science safety rules and categorized them.