MONDAY
7th Grade: Today we went over the reproducibility ("wiggle room") of our three balances. We discovered that the order of reproducibility is: TL (best), EAB, and then TBB (worst). We finished class deciding that the reproducibility of
the EAB is +/- 0.03 grams. This means that you can have a range of 0.03 above or below your measurement before you are actually demonstrating a true change in mass. You will see how this works when we do the next lab: melting ice. Here is the data from our class and the other 7th grade classes:
TUESDAY
7th Grade: We completed the melting ice lab. Your job was to discover the DELTA mass of the ice and the melted liquid. In order to calculate DELTA mass, subtract the mass of the liquid and bottle from the mass of the ice and bottle. If you have a positive number, you have shown an addition of mass. If you show a negative number, you have seen a decrease in mass. However, make sure you have seen a change OUTSIDE of your reproducibility (or wiggle room) which is 0.03g. If you are within your wiggle room, you have shown NO CHANGE!!
HOMEWORK: Complete a chart of all 14 measurements the class has taken.
8th Grade: Sunburns and TEST REVIEW. Here is your review sheet for the test on Th/Fri. Click on it to make it big! Go study!!!
WEDNESDAY
8th Grade: We will be finishing up the Integumentary System and reviewing for test.
THURSDAY
7th Grade: We will be finishing up melting ice lab and entering data.
8th Grade: Part I of Integumentary System Test.
FRIDAY
7th Grade: We will be starting Histograms.
8th Grade: Part II of Integumentary System Test.
