hair floats in water?
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Answer:If the hair seems to float in the middle of bowl of water, it has normal porosity. If the hair floats on top and doesn't sink much, it may have low porosity. ... If the hair becomes saturated rather easily, it may be highly porous. If the hair seems to slowly absorb water, it has normal porosity.
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What the float test can tell you. Hair that floats to the top for a while before sinking toward the bottom of the glass likely has low porosity. Hair that floats somewhere near the middle of the glass likely has medium porosity. Hair that sinks to the bottom of the glass fairly quickly is typically more porous.
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