Materials
30 mL (2 Tbsp) each of the following in labeled beakers or 3 ounce cups:
10% (w/w) ascorbic acid solution (vitamin C)
10 % (w/w) citric acid solution
Vegetable oil
10% (w/w) sodium chloride solution
10% (w/w) sugar solution
5 plastic cups per student
Marker
Knife
Round apple slices (7 slices per student)
Piece of plastic wrap (10 cm x 10 cm) per student
Forceps / tongs
Paper towels
10% (w/w) ascorbic acid solution (vitamin C)
10 % (w/w) citric acid solution
Vegetable oil
10% (w/w) sodium chloride solution
10% (w/w) sugar solution
5 plastic cups per student
Marker
Knife
Round apple slices (7 slices per student)
Piece of plastic wrap (10 cm x 10 cm) per student
Forceps / tongs
Paper towels