I have used this in my biology class with freshmen and my kids and it works. We tested different substances as well as crushed leaves and this separates the different pigments quite well.
π Cylindrical Metal Length and Diameter
3 Review
6Pcs Lime2018 Parallel Battery Holder
π Density Cube Block for Specimen Analysis
π¬ Precision Density Cube Set - Metals with 10mm Sides
Heart Anatomy Poster Laminated Anatomical
Anatomical Chart of Spinal Nerves and Dermatomes
π§ Enhancing Anatomy Learning: Portable & Detachable Enlarged Anatomical Education Aid for Students
π Musculoskeletal Anatomy Chart by Palace Learning