Lesson · Grade 5 · Science
Dissolving: Solute, Solvent and Solution
- Grade 5
- Science
- 1 min 13 s
- British Columbia
- BC5-SC-05
A spoonful of sugar (the solute) is stirred into a beaker of water (the solvent) and seems to vanish, while a close-up circle shows the sugar grain breaking apart into particles that spread out evenly between the water particles, making a solution. Two more spoonfuls in the same water turn the dilute solution concentrated, showing that concentration means how much solute is dissolved.
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In one sentence
The question this lesson answers
What happens to sugar when you stir it into water?
Here, water is the solvent, the liquid that the sugar dissolves in.
Transcript
What the lesson says
What happens to sugar when you stir it into water?
Here, water is the solvent, the liquid that the sugar dissolves in.
Sugar is the solute, the substance that dissolves.
Let's add a spoonful of sugar to the water.
Up close, water and sugar are made of tiny particles.
The sugar grain breaks apart into separate particles.
As we stir, they spread out evenly between the water particles.
The sugar seems to vanish, but it is still there.
This even mix of sugar and water is called a solution.
With only a little sugar dissolved, the solution is dilute.
Now stir two more spoonfuls into the same water.
With a lot of sugar dissolved, the solution is concentrated.
Concentration tells us how much solute is dissolved in a certain amount of solvent.
A solute dissolves in a solvent to make a solution, with a little or a lot dissolved.
Curriculum
Where this fits
The outcomes and strands follow the British Columbia curriculum.
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