Hot Air, Cold Air


Development Level: Preschool/PreK

Learning Areas: Technology, Science

Overview: Explore what happens when you put large plastic bottles with balloons on top in different temperatures of water. What happens to the balloon?


  • Two medium-sized bowls labeled “hot water” and “cold water”
  • Ice
  • Water
  • Electric kettle or other tool for quick access to hot water (for teacher use only)
  • Two large plastic bottles without a lid
  • At least two balloons, deflated

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