Evaluation of Sunscreens

Kemtec

$160.00
SKU:
CLKT-4218
Shipping:
Calculated at Checkout
Grades:
4-8
Group Size:
2-4
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Students determine the relative effectiveness of sunscreens with different sun protection factor (SPF) ratings using a laboratory model rather than human testing. They compare their own sunscreens against the standardized samples provided using the model. The comprehensive instructor’s manual included explains the different types of light waves, including the ultraviolet light (UV) categories; why UV light is harmful to skin; how sunscreens work; the biology of skin and how skin protects us from UV radiation; molecular structures of common protective sunscreen ingredients; how Beer’s Law relates to sunscreens; and how SPF ratings are calculated. Includes sunscreen samples for SPF comparisons, but requires five additional commercial samples for testing. Includes materials for an extension inquiry activity: Develop an Alternative Sunscreen Testing Model Using UV Beads.

Allow one hour lab time for experimentation plus an additional lab period for the extension activity. Designed for 24 students working in groups of four.

Components

Kit Includes:

  • Instructor's Manual
  • Student Manual
  • Sunscreen Circles Sheet
  • Blue Print Paper
  • Sunscreen SPF 4
  • Sunscreen SPF 8
  • Sunscreen SPF 15
  • Sunscreen SPF 30
  • Sunscreen SPF 45
  • Ammonia
  • Plastic Forceps
  • UV Beads
  • Black Construction Paper

Customer Quotes

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- Brook T.,Teacher, Lincoln Middle Schools, TN
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