Sponge becomes foamy when wet.

Meaning: This means the sponge turns into a foamy material when it absorbs water.

Choice of Words: Sponge is a soft, porous material that can absorb water. Becomes means to change into something. Foamy means full of foam, which is a mass of small bubbles. Wet means covered or soaked with water. When you put these words together, it means the sponge changes into a foamy state when it absorbs water.

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Related Expressions