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Bean Greenhouse

How do greenhouses help plants go grow? Build your own greenhouse and help a bean grow faster!

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  • What do plants need in order to grow?
  • How can you help a plant grow faster?
  • Have you ever helped out in the garden?
  • Why are greenhouses used to grow plants?
  • How can you build a greenhouse with the materials you have?
  • Soak the beans overnight the day before this adventure.
  • How will you track how much each plant has grown?


  • Build four different spaces for beans to grow:
    • Water in a cup
    • Water and soil in a cup
    • Water in a greenhouse
    • Water and soil in a greenhouse
  • Build your greenhouse by planting your bean in a clear plastic cup and taping another plastic cup upside down on top of it. Place in direct sunlight, and open occasionally to water.
  • Take your bean cups home and see how they grow during the week. How do you think you can record the growth of the beans?


  • What do you know now that you did not know before?
  • What did you see during the week?
  • What did the plants look like every day?
  • How were beans in the cups different? Why do you think this was?
  • What elements of STEM were in this activity? Science? Technology? Engineering? Mathematics?
  • What did you like about this activity? What did you not like about it? How would you do this activity differently?
  • Remember to submit your activities on our Scouts for Sustainability Take Action Map


  • 6 clear, plastic cups for each person
  • Soil
  • Paper towels
  • Water
  • 4 paper rulers for each person
  • Masking tape

Keep it Simple

  • Try growing chia seeds on a tissue, you can add it into an egg shell and watch your pet grow some hair.

Take it Further

  • Can you scale this up and make a larger greenhouse for a plant?