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Forces and Motion: Captain Smitty
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This activity works perfectly as the first lesson of floating and sinking or just as a fun stand-alone lesson on a nice afternoon.

After reading "Captain Smitty's Letter" your class will head outside with a bowl of water to collect natural objects and predict, then test, whether they float or sink. The students will then fill in their table with the results before thinking about possible reasons behind them.


  • Teacher guide.
  • Letter from Captain Smitty (the hook).
  • 2 x differentiated results tables.
  • Conclusion questions.
Teacher Guide.pdf
Letter from Captain Smitty.pdf
Results - Dif. 1.pdf
Results - Dif. 2.pdf
Conclusion Questions.pdf
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