About this worksheet
A clumsy robot assistant has knocked over a tray of lab materials, and 5th grade students sort the mess into three bins. The 15 items include an iron nail, table salt, copper wire, and chalk dust. Each goes under Magnetic Materials, Soluble in Water, or Neither Magnetic nor Soluble, which puts NGSS 5-PS1-3 into practice. Two follow-up questions ask for the trickiest item and one new material per bin, and the 3-page answer key names aluminum foil and chalk dust as likely traps.
