Ever wondered how ice melts or water boils?

Phase transition

Ever wondered how ice melts or water boils?

Imagine you're boiling water for tea. You notice it suddenly starts bubbling and changing from liquid to gas.

This happens because the water reaches a point where its molecules move faster and spread apart, changing its state.

Example

At 100°C, water's molecules have enough energy to escape the liquid phase and become steam.

Remember this

The temperature at which this happens is the boiling point, a phase transition point.

Text adapted from Wikipedia, licensed under CC BY-SA 4.0.

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