The ice cube changes states. From a solid to a liquid, but why? What’s making the particles in the ice move and turn into water?
You are constantly producing heat, your cells are constantly working, growing and dividing. As a by product of that, they produce heat. When you’re cold, your body produces more heat.
Particles in the ice cube take the energy from their surroundings.
They being to vibrate faster and move out of place and get further away. Turning from a solid to a liquid.
On the other hand, if we remove the energy from something, then we can slow the particles down. This makes essentially makes them organised and form a solid.
When blacksmiths shape metal, you notice they heat it up to very high temperatures. Once the metal is shaped, they put it in water to cool it. Making it particles solid again.
The point where a solid becomes a liquid is called it melting point.
Melting point is the amount of heat required to turn a substance from a solid to a liquid.