Lesson Plan: Removing Waste Biology

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to describe the processes by which waste products are removed from the human body.


Students will be able to

  • describe how waste products of water, carbon dioxide, sweat, and urea are removed from the body,
  • outline the structure of the skin and how it is adapted for waste removal,
  • explain why waste removal is important and suggest what may happen if it is not carried out.


Students should already be familiar with

  • the major organs of the human body (skin, lungs, bladder, kidneys, etc.),
  • humans’ need to sweat, urinate, and remove waste to stay healthy.


Students will not cover

  • the action of the kidneys and liver in waste removal,
  • details of thermoregulation,
  • osmoregulation.

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