Over break, you should outline the Physics Talk that starts on page 498. If there is a word used that you don't know, you should copy the definition from side of the P.T. into your outline.
You should also read about your chapter challenge in chapter 5 and start planning it (use the rubric as well). By the time we get back, you should have at least a sketch of what you plan on building, including steps to completing it and materials needed. You may also, instead, start building your instrument.
Happy Holidays!!!