We continued our exploration of how the nucleus of an atom can change by launching into Lesson 15. The lesson revolves around the Nuclear Quest board game where students learn how new elements are created. Before launching into the game, students elected to review the Lesson 15 PowerPoint in order to better understand the key concepts and vocabulary from the textbook reading they were assigned over the weekend. Students then had time to cut out the various game pieces (the board, the three sheets of nuclear quest cards, the two sheets of radiation cards) and look over the game instructions as preparation for playing the game and completing the Lesson 15 worksheet tomorrow. For homework Tuesday, students should complete the Lesson 15 worksheet, Lesson 15 textbook questions (#4-12), and read Lesson 16 in the textbook.
For more information on radioactive decay, visit the Bodner Group’s website out of Purdue University. Additional video tutorials for chemistry topics of study are available for free on Khan Academy (along with a vast range of other subjects). Can’t get enough of the Periodic Table? Enjoyed watching Theodore Gray on the Hunting the Elements video (he was the guy with the huge wooden periodic table who also reacted sodium and chloride to salt popcorn) – visit his interactive Periodic Table website to further explore the elements and see how they are used in the real world.
We extended our learning about neutrons yesterday with an lesson about isotopes. The Lesson 13 PowerPoint explains how certain elements like carbon always contain the same number of protons, but may contain different numbers of neutrons. Students then practiced calculating the number of protons, neutrons, and electrons on the Lesson 13 Worksheet. For homework, students should complete questions 1-9 at the end of Lesson 13 in the textbook. For extra credit, students may earn 10 extra points by researching about one of the elements and compiling their research into an Element Profile Project (see Chapter 2 Summary page in the textbook for instructions). An additional 5 points may be earned by adding on a section explaining which isotopes of the selected element are naturally occurring, the proportion of each isotope, and the atomic structure of each isotope (the number of protons, neutrons, and electrons in each isotope). If an isotope has a particular scientific use, that should also be included. Remember, no school tomorrow.
We continued our study of the atom by learning about the relationship between atomic number and atomic mass. Before launching into the Lesson 12 PowerPoint, we paused and reviewed student questions about the Lesson 11 Worksheet. We focused primarily on questions 3 and 5 from the worksheet, with responses drawn on the white board (pictured below, with the answer for question 3 on the left side of the board and question 5 on the right).
The questions nicely led into the Lesson 12 PowerPoint, after which students had the remainder of the class period to complete the Lesson 12 Worksheet. Aside from reviewing Lesson 12 in the textbook and reading Lesson 13 in preparation for class tomorrow, there was no additional homework assigned for this evening.
Chapter 3 began with a historical study of models of the atom. The Lesson 11 PowerPoint provides key vocabulary around the components of the atom (proton, electron, neutron, and nucleus). To go along with the Lesson 11 Worksheet, students also received a handout explaining the five models of the atom. Students also received a copy of the Periodic Table for reference. For homework, students should complete questions 1-5 from the end of Lesson 11 in the textbook.
Students took notes from the Lesson 9 PowerPoint, learning about the concepts of atomic mass, protons, and neutrons, and isotopes. Students also learned about electrons and the concept of electronegativity. They then worked together in groups of four to complete the Lesson 9 Worksheet. For homework, students were instructed to complete the worksheet, answer questions 1 and 2 from the end of Lesson 9 in the textbook, and then to read Chapter 10 in the textbook. Notes from the whiteboard are pictured below.