- What kind of toothpaste do you use? Why?
- What’s the main purpose of toothpaste?
- What sorts of toothpastes are now available in stores?
- What are the main ingredients of a toothpaste?
- Why is the structure of toothpaste important?
- “One of the big developments in the field has been the recognition that
there’s a tremendous similarity between putting a force on a paste and waiting a
long time,” Weitz says. What does he mean? Why is this important to know?
- What natural ingredients are effective in a toothpaste?
- Why is it important for a toothpaste to have fluoride?
- Why is it important for brushing and teeth cleaning that toothpaste have
both a liquid component and a gritty component? What other ingredients might
toothpastes have? See www.newton.dep.anl.gov/askasci/eng99/eng99398.htm(Argonne National Laboratory).
- What might be the health disadvantages of a toothpaste that’s too liquidy or
a toothpaste that’s too gritty? See www.newton.dep.anl.gov/askasci/eng99/eng99398.htm (Argonne
- Why is baking soda sometimes an ingredient in toothpaste? See www.womeninmining.org/rocksiymouth.html(Women in Mining).
- In what ways might today’s toothpastes be improved? See pubs.acs.org/hotartcl/chemtech/95/dec/dec.html (American
- What is a colloid? Is toothpaste considered a colloid? See en.wikipedia.org/wiki/Colloid (Wikipedia).
In the days before toothpastes and toothbrushes like those you use today, what sorts of things did people do to clean their teeth? How have toothpastes changed over the centuries? See www.toothpasteworld.com/history.htm (Toothpaste World) or www.bbc.co.uk/dna/h2g2/A2818686(BBC).
- Suppose that you are the president of the Global Toothpaste Council and you
have to deliver a speech to toothpaste manufacturers from all around the world.
How would you start your speech? Write out the first few paragraphs of your
- Toothpaste tubes and boxes try to appeal to shoppers. Go to a drug store or
grocery store and look at the varieties of toothpaste available. Which brand
would you be most likely to buy? Which ones would you never buy? Why? Write a
one-page report describing how you made your decisions.
It costs 90 cents for the Striped Toothpaste Company to make, package, and ship a tube of toothpaste. The company also has “overhead costs” of $3,000 per month. The company sells (at wholesale) cartons of toothpaste at $2.50 per tube. This month, the company sold 5,000 tubes of toothpaste. What is this month’s profit?