Use the Periodic Table as a "decoder" for Halloween words! Use element atomic numbers and symbols to decode words or phrases associated with Halloween, such as spooky, screams, black cat, etc. There's a section with our favorite Halloween candy names to decode and unscramble, as well. There are 30 words/phrases in total. NO PREP! Includes GOOGLE SLIDES and PRINT versions! ⭐ We offer lots of Halloween Science Activities! Check them out HERE! Teacher Notes:No prior knowledge of the periodic