|How does toothpaste work? What is it made of? Are all brands the
same? What criteria can be used to evaluate their effectiveness
and efficiency? Your students will enjoy this insightful look at
this commonly used product. They'll learn how to evaluate
toothpaste and assess the quality of individual brands by
determining such attributes as abrasiveness, pH, fluoride content
and foaming ability.
Includes enough materials for a class size of 40 students.
Recommended for students in grades 7 through 10. Manufactured by