Materials list: • Elementary microscope with 360° rotating head (SB27572) • Plastic microscope slides, set of 50 slides & cover slips (SB16377) • Methylene blue stain, 100 ml (SB07740) • Dropping pipette, 3 ml, pkg. of 100 (SB50474) • Black fine-point permanent marker (9730243) • Cup of water • Paper towels