Online textbooks: Using Knovel, find an ebook chapter relevant to the topic you searched above. What is the name of the book and chapter? How does the information here compare to what you saw in the older textbook? Include a citation.
Physical properties: Use Knovel or the CRC Handbook to look up a physical property of a substance that you may be interested in (suggestion: electron work function of aluminum). Include a citation.
Reflection: What did you learn today that you may use later in this or other classes?