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Science · 6–8

Everyday Science: Chemistry in Common Items

Explore the chemistry of toothpaste and soap through accessible explanations, diagrams, a pH investigation, and critical-thinking questions.

$4USD · Digital download

Explore the chemistry of toothpaste and soap through accessible explanations, diagrams, a pH investigation, and critical-thinking questions. Students connect chemical properties, acids and bases, molecular structure, and saponification to familiar household products.

4 pagesof ready-to-use material · PDF
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What you’ll teach

Clear goals. Useful learning.

  • Students will explain how toothpaste ingredients support oral health.
  • Students will investigate and compare the pH levels of toothpaste samples.
  • Students will describe how soap molecules interact with water, oil, and dirt.
  • Students will explain the basic process of saponification.