Explore the chemistry behind a classic photograph development method: Cyanotype Printing. This process involves photo-redox of iron compounds and complexation to form Prussian Blue pigment. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS1.B Performance Expectations: MS-PS1-2; HS-PS1-4; HS-PS1-5 Cross Cutting Concepts: Patterns; Energy and Matter Kit Contents: Ferric Nitrate Solution, 100 mL Oxalic Acid Solution, 100 mL Potassium Ferricyanide Solution, 200 mL Intensifying Solution, 200 mL 4 Plastic Trays Plastic Forceps 4 Circular Paper Sheets 4 Medicine Cups Materials Needed but Not Supplied: Small Object, Tape, or Thick Paper (To use as a negative) Water (Tap is fine) Paper Towels Masking Tape and Marker/Pen (For labeling) Aluminum Foil or Dark Cabinet (To shield treated paper from light while drying) DOT Info: UN1760, Corrosive liquids, n.o.s., (Oxalic acid), 8(III), Limited quantity equal to or less than 5 L. *"Next Generation Science Standards" is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product.