Earthworm observation

Earthworm Observation

Equipment you’ll need:

  • Deionised water
  • Distilled vinegar
  • An earthworm
  • Petri dish

Method and observations:

  • Observe the earthworm moving. Look for peristaltic movement.
  • Soak a cotton bud in deionised water and bring it close, just touching the anterior and posterior ends of the earthworm.
  • Soak a cotton bud in vinegar and bring it close (without touching) the anterior and posterior ends of the earthworm.