Organisms that make shells or have skeletons that are exposed to seawater, such as clams, snails and sea butterflies, could see their shells dissolve in water that is too acidic.

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This is a molecule or molecular combination that has different properties on different parts of its surface: in particular, one part prefers to dissolve in water whereas another part prefers oil.

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One way round this for a swimming animal is to develop an outlet which allows urea to dissolve directly in the water as it swims, which is what the turtles seem to have done.

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On the day of baking, dissolve the yeast in the water in the bowl of an electric mixer.

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Since the dendrimers are water-soluble, the whole complex can dissolve in biological fluids, which fullerene alone cannot.

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The perchlorates in the mud then sucked moisture out of the air until there was enough water for them to dissolve (a process known as deliquescence).

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