As part of learning about solutions during our ‘What’s the Matter?’ topic, we explored floating and sinking.
In fresh water, a fresh egg will sink.
However, if you add salt to create a salt solution…
…the egg will float.
At home, see whether your child can explain why this is. They should use our key word: dense.
We then predicted that the same would happen if we used sugar to create the solution.
The fresh egg sunk, like before.
We stirred in the sugar to make sure it created a solution…
…and eventually the egg floated.
We needed to add more sugar to make it float than we did for the salt. See whether your child can say why we thought we needed to use more sugar. They’ll need to use the key word: particles.