Thirsty Flower - Experiment

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Plants need to eat and drink in order to stay alive, just like people do. That is why you put flowers in a vase with water. But how does the water reach the flowers?


  • white tulip
  • pair of scissors
  • 2 drinking glasses
  • 2 colors of liquid food dye
  • water
  • ruler
  • 15 minutes preparation time
  • 5 minutes after two hours

Step by step

  • Step 1. make a cut of 12 cm in the stem of the tulip, from the bottom up
  • Step 2. poor a little layer of one color of food dye in a glass
  • Step 3. poor a little layer of food of the other color of food dye in the other glass
  • Step 4. fill the rest of the glasses with water
  • Question 1. What do you think that will happen when you put the tulip in the two glasses?
  • Step 5. put each end of the stem in one of the two glasses
  • Step 6. leave the glasses with the tulip in day light
  • Step 7. wait two hours
  • Question 2. What has happened after these two hours?
  • Question 3. Why do you think this is?