This is a copy of my flipchart for a unit anchored to the amazing feat of World Record Free diver, William Trubridge. The flipchart contains all the questions I asked and the progression of activities we did. I couldn't get the animations linked in the pdf of the flipchart, but if you email me, I'll send them to you. This unit is great for getting your students THINKING and constructing their own explanations!
I developed this unit to help engage my students in the NGSS science and engineering practices.