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This depends on the density: if the density is greater than 1 g/cm3 (density of water) an object sink; if the density is lower the object float.
I tested just now four tooth brushes: three sink, one float !
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoIt would sink by the head, e.g. the brush end.
Wiki User
∙ 12y agoDo an experiment with a piece of bone about the same size, you'll get the answer.
Anshuman Tripathy
It will mostly sink. In some cases if the toothbrush has lesser toothpaste and thus more air, it will float.
therefore it will sink
Anonymous
Float
Anonymous
Sink
Anonymous
Float
Anonymous
yes
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How do you brush your teeth my daughter asked that?
Put tooth paste on your tooth brush and then scrub your teeth and tongue with the tooth brush. You then spit out the lather and rinse your mouth a few times. Rinse out the sink and then enjoy your fresh new smile.
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Get a tooth brush and tooth paste and there brush your teeth….DUH!!
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