Bill Nye: The biodiversity video sheet, includes a link to the video on the sheet. Very easy for my 6th grade EC classes, it's multiple choice answers 1-8, and 9 asks.
"Why is it important for humans to conserve all organisms in an ecosystem? "
Number 10 asks
"What is one new thing you learned while watching the video on the biodiversity. "
This way they get a chance to watch the video and not spend all of the time on reading and answering the follow along questions.
Hard time finding the video? look on dailymotion