Learn about dissolving and mixing.
Time for a drink?
Great, I'm a bit parched.
Some substances dissolve when you mix them with water like sugar or jelly or salt…
Well that's gross!
It looks like it's disappeared but it's still there.
It's just mixed with the water to make a transparent liquid called a solution.
A substance that is able to dissolve in water is known as a soluble.
Eurgh, that can't have tasted good.
However, when you mix other substances with water they don't dissolve.
These are called insoluble substances.
They just stay the same in water and sink to the bottom. Like sand.
You can see the sand in the water so nobody would drink that.
Oh…that is…that is just disgusting.
Dissolving
Some substances dissolve when you mix them with water.
When a substance dissolves, it might look like it has disappeared, but in fact it has just mixed with the water to make a transparent (see-through) liquid called a solution.
Substances that dissolve in water are called soluble substances. When you mix sugar with water, the sugar dissolves to make a transparent solution. Salt is soluble in water too.
Substances that do not dissolve in water are called insoluble substances. When you mix sand or flour with water, they do not dissolve.
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