The Chemistry of Toothpaste - Chemistry Experiments - page 10

Figure 1

Toothpastes are available in a variety of formulations.

Materials

2

5 different brands or varieties (such as whitening, tartar
control, sensitive, anticavity, plaque preventing, and breath
freshening) of toothpaste

2

pH paper

2

fluoride test strips

2

distilled water (about 10 milliliter [ml])

2

aluminum foil

2

test tubes (about 5 per group)

2

test-tube rack

2

Parailm TM or test-tube stoppers

2

10-ml graduated cylinder

2

spatulas

2

cotton swabs (at least 5 per group)

2

ruler

2

masking tape

2

permanent marker

2

science notebook