Post 1: In the post the teacher has set up an example picking the best video for a new job. Your a game designer for Rovio Entertainment and you must choose the best of 4 demo videos.
My comment was just me picking the video I would have chosen.
In this post the teacher is displaying his findings on the experiments he did during the day. He did experiments on kinetic and gravitational energy. He asked his readers on what their thoughts on the subject was.
My comment basically said on what I could remember from science class which was that the both energies depended on the mass of the object.