Matter, Atomic Structure, and Bonding: Bonding

The Lesson 26 PowerPoint introduced students to the four models of chemical bonding.  Students also received a handout of the models with additional information.  After the PowerPoint, students worked in pairs to organize the Substance Cards and recorded their learning on the Lesson 26 worksheet (one per student pair).

Note: worksheet question #8 asked students about elemental substances.  We did not have time at the end of class to explore the topic, so we will discuss briefly tomorrow during class.  Examples of elemental substances are molecular oxygen (O2) and molecular hydrogen (H2), both of which consist of two covalently bound atoms of the same element.  An elemental substances consists of two or more atoms of the same element.

Energy, Matter, and Organization: Why Can’t You Hold Your Breath Forever?

We are giving Google Classroom a try for the first time in Biology class.  After clicking the link, students should enter the class code written on the white board, which will grant them access to the “classroom” automatically in the future.  Once there, students should access the Biology classroom and select the “Why Can’t You Hold Your Breath Forever” assignment.  The assignment consists of four pages of reading from the textbook, followed by a Google Doc worksheet.  After “turning in” the worksheet, the remainder of the class period can be used to review the ocean acidification content linked to yesterday’s post.