Evaporation and Boiling
⭐ MasteredEvaporation is when a liquid slowly turns into a gas at any temperature. Boiling is faster and happens at a set temperature, when bubbles form throughout the liquid.
Puddles dry up because water evaporates into the air, even on cool days.
All about Evaporation and Boiling
Evaporation is when a liquid turns into a gas at its surface at any temperature. Boiling happens at a set temperature when bubbles of vapour form throughout the liquid.
Evaporation is why puddles dry up and wet clothes dry on a line.
It happens at the surface of the liquid, where the fastest particles escape into the air.
Boiling is much faster and happens at a set temperature, which is 100 degrees Celsius for pure water at sea level. Boiling needs a lot of energy, so you have to keep heating the water for it to continue.
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Real-life uses of Evaporation and Boiling
- Drying clothes and hair
- Cooking food by boiling water
- Making salt by evaporating sea water
Frequently asked questions about Evaporation and Boiling
Does evaporation need heat?
It can happen at any temperature, but warmer conditions make it faster.
At what temperature does water boil?
At sea level, water boils at 100 degrees Celsius.