Chemistry for Grades 4-5: 6 hands-on spy themed STEM investigations from The Cipher Lab. Complete teacher scripts, scaffolded student workbook, paragraph-level CER, 4-tier differentiation, Observation Readiness Scorecard. 155 pages. Dollar store supplies. NGSS 5-PS1-3 aligned.THE CIPHER LAB: CHALLENGE CHEMISTSGrade-Band Spin-off from Velvet Rigor EDU™Where Chemistry Meets Cryptography and Logic Saves the DayYou teach 4th or 5th grade and you need science investigations that don't insult your stu