Sink or Float

Ideal for Preschool/Pre-K, School-Age

Drawing of a chemistry beaker, blue and purple gears, and measuring tape.

Children will develop and learn to:

  • Make predictions
  • Make observations and chart their findings
  • Form a hypothesis (educated guess)

Materials Needed:

  • A tub or bowl of water
  • Paper
  • Marker to record your findings
  • Items from around your house to test your hypothesis (oranges vs. watermelon, etc.)


  1. Fill the tub or a bowl of water.
  2. Test each item you have gathered and record each item if it sinks or floats.
  3. Make observations and chart your findings on a piece of paper.

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