Year 5 made a saltwater solution by dissolving salt in warm water. A button was hung in the jug and as the water evaporated the salt collected on the button and the string. We learnt that this is a reversible change.
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Year 5 made a saltwater solution by dissolving salt in warm water. A button was hung in the jug and as the water evaporated the salt collected on the button and the string. We learnt that this is a reversible change.