div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentderry-area-school-district-overview-reading-identify-the-main-idea-inquiry-graphhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Derry Area School District Overview · Reading: Identify the Main Idea Inquiry: Graph Making Sound Waves A sound wave begins with a vibration Look at the drum shown in Figure 1 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsinreader033viewer20220530236055678a8e20203af8166dechtml5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentderry-area-school-district-overview-reading-identify-the-main-idea-inquiry-graphhtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: Derry Area School District Overview · Reading: Identify the Main Idea Inquiry: Graph Making Sound Waves A sound wave begins with a vibration Look at the drum shown in Figure 1 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsinreader033viewer20220530236055678a8e20203af8166dechtml5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentderry-area-school-district-overview-reading-identify-the-main-idea-inquiry-graphhtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: Derry Area School District Overview · Reading: Identify the Main Idea Inquiry: Graph Making Sound Waves A sound wave begins with a vibration Look at the drum shown in Figure 1 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...