Antimicrobials: Is Keeping Clean Risky?


Explore environmental health effects of the antimicrobial Triclosan

Explore potential environmental health issues associated with Triclosan, an antimicrobial agent found in a variety of consumer products.

  • Conduct simulated tests that show Triclosan may be present in humans, lake water, and soil.
  • Model how natural selection could result in the evolution of antimicrobial resistant bacteria.
  • Analyze readings to identify the benefits and potential risks associated with Triclosan.
  • Discuss actions that can be taken when the potential effects of chemicals are unknown or poorly understood.
Assembled kits
Materials to assemble 10 kits - includes all supplies, printed labels, and student instructions copy master
Materials to refill 10 kits

Kit Includes

  • Student instructions
  • Triclosan Test Sheet
  • Simulated Triclosan Test solution
  • Simulated urine samples
  • Positive control and negative control samples
  • Labeled droppers
  • Beads
  • Clear plastic dish
  • Evolution of Antibiotic Resistant Bacteria – diagrams and caption cards

Also Required

  • Safety goggles
  • Paper towels for clean up

Quantity Discounts


  • 1 – 9 kits: $16.95 each
  • 10 – 24 kits: $16.10 each
  • 25+ kits: $15.26 each


  • 1 – 9 packs: $116.95 each
  • 10+ packs: $111.10 each


  • 1 – 9 packs: $36.95 each
  • 10+ packs: $35.10 each

Correlation to Next Generation Science Standards (NGSS) Shop by NGSS »

Performance Expectations:

MS-LS4-4. Construct an explanation based on evidence that describes how genetic variations of traits in a population increase some individuals’ probability of surviving and reproducing in a specific environment.

  • Science & Engineering Practices

    Constructing Explanations - Construct an explanation that includes qualitative or quantitative relationships between variables that describe phenomena

  • Disciplinary Core Ideas

    LS4.B: Natural Selection - Natural selection leads to the predominance of certain traits in a population, and the suppression of others.

  • Crosscutting Concepts

    Cause and Effect - Phenomena may have more than one cause, and some cause and effect relationships in systems can only be described using probability