Science – Matter

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Properties of a solid.

This week we investigated how matter can change state. Water can be a solid, liquid or a gas. We investigated how chocolate can change from a solid to a liquid by adding heat.

First we used our senses to observe the properties of the chocolate as a solid. It was brown, solid, smooth and hard. Next we held the piece of chocolate in our hands. After a few minutes, the chocolate was still brown, but it was now runny and slippery and it changed shape. The heat had transferred from our hand to the chocolate and melted it. It was now a liquid.

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