Materials List: Basically Acidic Ink

Each group needs:

  • 6 small, cup-like containers
  • 3 cotton swabs
  • pipette
  • spoon
  • index card, one per person
  • pencil, one per person
  • Basically Acidic Lab Sheet, one per student

To share with the entire class:

  • lemon juice
  • ammonia-based glass/window cleaner
  • vinegar
  • baking soda
  • red cabbage juice
https://www.teachengineering.org/activities/view/uoh_hp_activity_acidic_ink