A Periodic Table of the Elements Scavenger Hunt Puzzle all about communicating chemistry in Morse code?! Given the International Morse Code and some thought provoking clues, students decipher the names, symbols, and atomic numbers of elements. Part of a series of original and engaging activities designed to introduce and familiarize students with the Periodic Table. Provide students with copies of the Scavenger Hunt Puzzles, an updated Periodic Table, and off they go! No prep. Puzzles may be