# Could an insect walk on a liquid such as rubbing alcohol which has a smaller attraction between molecules than water?

Given that the density of ethanol is $0.79 \cdot g \cdot m {L}^{-} 1$, which is lower than the aqueous density of organisms, you would sink like a stone. Insects also use the large surface tension of water for their locomotion; alcohols do not have these large surface tensions.