Lesson 5 of 10
Does it dissolve?
Show on a big screenStir sugar into tea. The sugar vanishes: you cannot see it. Where did it go?
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The idea
The sugar did not go away. It spread through the tea in tiny pieces.
A solid keeps its own shape, like sugar.
Dissolve — to spread through water in pieces too small to see.
Some solids in water. The water stays clear.
Sugar and salt . Sand does not. It sinks to the bottom.
Step 1 of 4
- Sugar above one cup. Sand above another.
- Sugar drops in, all together.
- Stirred, it spreads too small to see.
- Sand sinks and stays whole.
Try the lab to finish this lesson.