Plants need a variety of nutrients and minerals to grow and maintain overall health. The three main nutrients that plants require to survive and thrive are nitrogen, phosphorus, and potassium (also known as NPK). In this activity, students will extract nutrients from plants of your choice and perform analyses to determine if nitrogen, phosphorus, and potassium concentration is abundant, adequate, or deficient. Kit contains enough materials to perform 5 tests. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: ESS2.A Performance Expectations: MS-PS1-2, PS1.A, PS1.B Cross Cutting Concepts: Scale, Proportion and Quantity; Structure and Function Engineering Practices: Constructing Explanations and Designing Solutions; Planning and Carrying Out Investigations Kit Contains: Plant Nutrient Extractor, 50 mL Nitrate Reagent #1, 5 mL Nitrate Reagent #2, 5 g Phosphorous Reagent #1, 5 g Phosphorous Reagent #2, 5 mL Potassium Reagent #1, 5 g Potassium Reagent #2, 10 mL Filter Paper, Pack/100 4 Collection Bottles Spot Plate Stir Stick 5 Pipettes DOT Information: UN1479, Oxidizing Solid, n.o.s., (Sodium hexanitrocobaltate), 5.1, PGII, Limited Quantity less than or equal to 1 kg. *"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.