Designed for a grade 8 science unit on fluids. Experiment focuses on comparing densities of two samples of "gold" to determine if both are identical materials or not. Students are introduced to lab through a scenario that a king has requested Archimedes to determine whether Midas has sent him pure gold or not. Included in this file are instructions for the teacher to set up lab, letter to Archimedes from the king explaining the situation (for role play purposes), success criteria checklist and assessment, and student lab/observation recording sheet. I also have a .mp3 file of a voice recording of the letter to Archimedes read in character if you desire and available at no charge if you contact me.