So, the test was difficult, and some of you did very well, but overall, I think we need to keep working on the material from the last section: reflection, refraction, diffraction, interference, standing waves and resonance.  These are properties that all waves share, and so we will continue to discuss them when we learn about sound waves in music and when when we study waves in light.  So first things first, watch Mr. Anderson's video:  TAKE NOTES!  In fact, jot down the six words above on  six index cards, and add information as you watch...

(This is a video made for teachers to explain what it is they are supposed to be teaching.)


Textbook reading: Chapter 12, Sound section1.  Fill in applicable worksheet from the packet handed out in class. - page 25 and 29. Be able to draw the ear from memory.

Lastly, research homemade musical instruments for ideas.  Focus on an instrument which can play different pitches (notes) rather than only rhythm, and don't do an instrument where you fill up glass containers with water, since we will be doing this in class.)  We will also talk more about this on Thursday, if you haven't come up with anything by then.  Google, pinterest,  or youtube, "homemade musical instruments".  Your parents might be willing to "pitch" in for supplies (get it?) and as you recall, I have lots of PVC pipe, in case that helps (3/4").