Investigate how to make a boat float

An investigation for year 2 and P3, linking to the topics everyday materials and properties and uses of substances. Pupils will find out how a boat floats thanks to the buoyant force. They will investigate how to make their own boats using Plasticine or sticky tack. They will also learn about density with some speedy science activities involving an egg, water and salt.

This pack includes:

  • A differentiated lesson plan
  • A PowerPoint presentation entitled ‘Will it float?’
  • A table to record class results

Simple to resource! The items you will need:

  • A clean black plastic food tray
  • Another piece of black plastic packaging
  • A paper straw
  • A scrap of plastic bag
Year 2
Everyday materials
Investigate how to make a boat float

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