snoring dog video

Length of My Science Video?
I have a science project. It’s about my dog and if she can find a container with a snack in it( i know crappy experiment). So I ahve to talk during my video so I can’t speed it up. The video is supposed to contain information like variables, hypothesis and factors. I just want to know a good length. Too long and people might start snoring, and too short I might not get full credit. HELP ME
no more than 7 and 1/2 minutes. anything longer would put people to sleep, any shorter than 3 minutes would not get you full credit, and then you have a 4 and 1/2 margin of error.
Sleeping Snoring Dog
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