A Fountain of Valentine Hearts

With marshmallows, bottle, and a microwave, you can create a Valentine's day fountain!

What you need:
  • marshmallow hearts, such as Peeps
  • empty plastic water bottle
  • parchment paper (optional)
What to do:
  1. Slide the marshmallows into the bottle. (You may want to roll each marshmallow up in parchment paper to slide it inside the bottle, then pull the parchment paper away.
  2. Microwave the bottle, watching closely to make sure it doesn't get too hot.
  3. Watch the marshmallow come fountaining out of the bottle!

What's happening:
As the marshmallows heat up, the gelatin softens while the air bubbles expand, making the marshmallows grow bigger. Since the marshmallows are trapped in a bottle with a narrow opening, the expanding marshmallow gets forced through the narrow bottle top, creating the fountain effect. <

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