Balloon Greenhouse

What You Need:

  • Clear balloon
  • Radish Seeds (Organic, if you can find them!)
  • Funnel
  • ½ Cup of dirt
  • ¼ Cup of water
  • String

What You Do:

  1. Help your child place the funnel into the neck of the clear balloon.
  2. Encourage them to slowly pour the dirt into the balloon, making sure that none of the dirt falls outside of the funnel.
  3. Have them slowly pour the water into the funnel to moisten the dirt in the balloon.
  4. Finally, drop a few radish seeds into the moist dirt.
  5. Carefully remove the funnel from the neck of the balloon and blow into the balloon to inflate it. Don't inflate it to its maximum size, because it may pop!
  6. Knot the inflated balloon and tie a piece of string around the knot.
  7. Hang the balloon near a window so the sun will help the seeds sprout.

Helpful Tips: Make sure your child understand what's happening inside the greenhouse. The balloon greenhouse will protect the radishes as they grow. The balloon will help keep the temperature of the air warm and the humidity in the tied balloon will create water to feed the radishes as they grow!

You can easily turn this into a science experiment by having your child keep a journal to track the plant's progress. They can check back at the same time every day and draw a picture of the plant to record how much it's growing. If you want, you can even plant some more radishes in your garden and track their progress as well. How does the plant inside the greenhouse differ from the plant outside of it? Does the greenhouse seem to have any effect on the radish's growth?

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