Does Caffeine Affect Heart Rate?

  • Created by: HeyItsMEE
  • Created on: 03-12-19 09:35


  • culture of daphnia
  • three cavity slides
  • three dropping pipettes
  • distilled water
  • caffeine solution
  • cotton wool
  • pipettes
  • test tubes
  • stop clock
  • paper towels
  • microscope


Put a few pieces of paper towel on the cavity slide; this will help to restrict the movement of the daphnia. Using a pipette, transfer one large daphnia to the cavity


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