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A friend at work was telling me about an experiment her 7th grade science teacher did that has stumped her for the last 15 years, maybe you guys have seen it or have some ideas as to how it works (because now I am trying to figure it out!). She said her teacher had a "black box" that concealed something inside. The box had a hole in the top and a hole in the bottom and when you poured ordinary water in the top, it came out of the bottom colored. The strange thing was everytime you put water in (about a cup), it came out a different color. The pattern was random, and I don't know how many times it could run without a "recharge" of some sort. Having never seen the experiment I (and you) are limited somewhat. Does anyone have any ideas???
Yes, Us science teachers use it as an inquiry skill in helping the students realize that not all they you observe is correct. It allows students to realize that what they see and what actually occurs could be two different things.
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