Sink or float explorative experiment
This experiment is intended for pre-k students and is appropriate for ages of 2+. (Although younger children may not wish to make predictions for every item)

MaterialsEdit
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Washbasin (or filled sink or tub).
Sample itemsEdit
Here are some sample items that you might wish to try.
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A marble
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A feather
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A coin
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Unlit birthday candle
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Plastic egg
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Metal fork
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Plastic fork
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Domino
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Pom-pom
Form a hypothesisEdit
Will the object sink or float?
ExperimentEdit
Drop the item in the water.
ResultsEdit
Did the item sink or float? Was your hypothesis correct?
Which materials were more likely to sink? Which materials were more likely to float? Do you think the shape of an item affects whether it sank or floated?