Question

what is thinner than water that is not an object?
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Answer 1

A non-dense, non-viscous liquid like water will appear "thinner" than a dense, viscous liquid like molasses. The viscosity of water is 8.90 × 10−4 Pa·s at 25C, the viscosity of acetone is 3.06×10−4 at 25C. In my interpretation of your wording, this would make it seem like a thinner liquid than water.

Answer 2

Explanation:

motor oil,mineral oil,corn oil etc