Bubble Nucleation in boiling water: Observational Experiment

Aim

Observe different ways of making steam bubbles form in boiling water.

Prior Knowledge

Description of the Experiment

How do bubbles form when water boils? They need help to nucleate. Here we tried some different objects thrown into the water to see how they affected the boiling process. First we threw in a pin. Then we tried just stirring up the beaker. Check out the results below...

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Questions

Notice in both cases how the bubble formation is increased by the addition of the two objects.