Properties of Toothpaste

What is a toothpaste?
It is the product we use every day. There is a huge variety of toothpastes on the shelves of every pharmacy and supermarket.
What does it consist of; Are all brands the same? What criteria can be used to evaluate their effectiveness and efficiency? Students will enjoy this penetrating look at this daily product. They will learn how to evaluate toothpaste and evaluate the quality of individual brands by defining such properties as its texture, pH, fluoride content and roughness.

How does toothpaste work?
What does it consist of;
Are all brands the same?
What criteria can be used to evaluate their effectiveness and efficiency?
The package contains several materials for 30 students. The use of a laboratory is recommended. The kit includes the following activities:

Activity 1: (15-20 minutes)
Check the pH of the toothpaste.

Activity 2: (15-20 minutes)
Check the ability of the toothpaste to form foam.

Activity 3: (15-20 minutes)
Check the fluoride toothpaste.

Activity 4: (15-20 minutes)
Examine the abrasiveness of the toothpaste.

Activity 5: (40-45 minutes)
Make your own toothpaste

+ 2 more optional activities

The kit includes:

3 Toothpaste samples
50 pH test strips
50 fluoride test strips
45 plastic test tubes
15 acetate leaves
45 plastic pipettes
30 mL 1M HCl
100 mL Glycerin
25 g Sulfur sodium sulfide
25 g of acacia powder
150 g of calcium carbonate

You will also need optional:

deionized or distilled water
rulers
test tube support bases
heat glasses
electronic scale
your own toothpaste samples
food coloring
natural or artificial sweeteners
toothbrushes
safety glasses
gloves