Class Update

Thursday, Dec 3rd. Today we continued our investigations into chemistry and the nature of matter. We tried floating paperclips on water, making careful observations and then explaining how this is possible based on what we know, what we have experienced and observed and what makes sense. We shared and critiqued ides as a group. Some ideas that were discussed included surface tension, density, floating and sinking, the "stickiness" of water, attractions between water molecules and other matter, and the attractions between water molecules themselves.