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Steam with a theme – Episode 2

Steam with a theme – Episode 2


In this episode, teacher Sari Lorner talks about pufferfish, and how they can blow themselves up like a balloon in defence of predators.

You will need: 

  • Balloon
  • White Vinegar
  • Baking Soda
  • An empty bottle with a narrow neck
  • Spoon
  • Funnel or a piece of paper

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