Materials List:
Wet Pennies
https://www.teachengineering.org/activities/view/duk_drops_mary_act
- 3 small beakers (50-100 ml) or plastic cups (about 4 to 8 ounces) per group
- 1 disposable pipette per student, plus a few extras
- 1 penny per student
- rubbing (isopropyl) alcohol, two 16-ounce bottles
- vegetable oil, one 32-ounce bottle
- paper towels, several per student
- water
https://www.teachengineering.org/activities/view/duk_drops_mary_act