Petri Dish Streaking Pencil Bag

Ogle all you want at the streaking patterns on this Petri dish-inspired zip bag. The streaking process employs multiple methods, but its overall purpose is to isolate a pure strain from a single microorganism so that resulting colonies can be collected, grown separately, identified, studied or tested. What patterns do you like to make? This fun and artistic take on microbiology is a great gift for anyone that enjoys planting bacteria and watching it grow.