Question

a piece of wood sinks in ethanol but floats in gasoline. what can you determine about the three different densities?

Answer 1

Wood sinks in ethanol => wood has higher density than ethanol.
wood floats in gasoline=> wood has lower density than gasoline

Answer 2

Answer: gasoline has more density than wood and wood has more density than gasoline.

Explanation:

Density is defined as the mass contained per unit volume.

$\text{Density of substance}=\frac{\text{Mass of a substance}}{\text{Volume of a substance}}$

A substance having more density will sink at the bottom and the substance having less density will float at the top.

As the wood sinks in ethanol , it means wood has more density than ethanol.

As the wood floats in gasoline, it means wood has less density than gasoline.

Hence, the order of density will be gasoline > wood > ethanol.