Mystery boxes

After reading this post on Tales From a Secondary Science Teacher I decided to make my own boxes.

I ordered 5 small 'project' boxes from maplin (Total cost about £12.50) and set about placing items into them.

I have decided to make a note of the contents of my boxes because I think that as an extension to the 'guessing' part of the activity the students could devise a way to test their predictions. Part of this could be to construct a copy box to see if it behaves in the same way. So, a pile of 'test' items could be provided for students to compare against.