G6 Week 10 – S2

Friday, April 20th

Today in science: Students were again asked to use supplies of 0.1 M HCl and 0.1 M NaOH to learn more about the behavior of indicator solutions. In addition to using cabbage juice (again), students were also asked to try using a universal indicator solution and universal pH paper. In their lab notebooks, students were asked to record the results of their investigations, which involved a more ‘systematic’ approach discussed at the beginning of the lesson (remember the ‘Edo’ method?).

Homework: There is no science homework this weekend.

Thursday, April 19th

Today in science: After discussing the materials, procedures, and safety concerns for today’s investigation, students were asked to use their supply of 0.1 M HCl and 0.1 M NaOH to create as large a range of rainbow colors as possible. These colors, it was explained to students, correspond to the numbers found on the pH scale (0-14).

Homework: There is no science homework tonight.

Wednesday, April 18th

Today in science: After watching and discussing 2-minute video recently released by the people at CERN (the famous particle collider facility located near Geneva), students were introduced to two (liquid) chemical solutions commonly found and used in our MS science labs: an acid solution (HCl, 0.1 M) and a base solution (NaOH, 0.1 M). After testing these liquids with both red and blue litmus paper, as well as with a universal indicator strip, Dr. Merritt explained how to make another acid/base “indicator” from red cabbage juice. Each student then used his/her own mortar and pestle to make their own red cabbage juice indicator. The student-extracted indicator solution collected at the end of the period will be used in class on Thursday to explore the full range of colors that help define and constitute the pH scale.

Homework: There is no science homework tonight.

Tuesday, April 17th

Today in science: H period science class does not meet on Tuesdays.

Homework: 

Monday, April 16th

Today in science: We started today’s class with a thorough mailbox and Classroom Science Binder clean out. This cleaning and sorting process involved riding ourselves of any Semester 1 and/or 2 school work that will no longer be of good use to us between now and June. We then added the following assignments to our Classroom Science Binders:

1) Matter & Molecules worksheets: all completed and graded worksheets from the packet with numbers from 1.1-1.4 and 2.1-2.3.
2) Identifying Variables #1: 2G.20 (ungraded – corrected in class)
3) Identifying Variables #2: 2G.24 (graded)
4) Identifying Variables #3: 2G.23 (graded)
5) Identifying Variables #4: 2G.22 (graded)
6) Identifying Variables #5: 2G.21 (graded)
7) Identifying Variables #6: 2G.30 (graded)

After the cleaning and organizing process we briefly discussed some of the challenges and most surprising results form this past weekend’s Litmus paper investigation. At the end of the period, students were asked to leave their Litmus paper investigation papers with Dr. Merritt.

Homework: There is no science homework tonight.

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