I lucked out last year during a curriculum revision project. I had two units that were up for revision. One was on botany and the other was on insects. After looking at the NGSS, the page shown above just sang to me. The resulting unit combined the concepts of these two units into one and culminated in students designing and building their own hand pollinator. Th inspiration for the culminating event came from Engineering is Elementary- "The Best of Bugs: Designing Hand Pollinators".
If you notice the asterisks (*) at the end of the second PE, that indicates a connection to the newest content to enter the science classroom-Engineering. In our current standards, engineering is referenced under the skills and processes. Under the NGSS it is now a content like Biology or Physics. The unit is now being implemented by teachers. Over the next few weeks, I will update you on the progress students and teachers are making.