This diagram was drawn by Dr Noot using paint. Dr Noot had trouble making it bigger so he has posted it as it is. If you click on it, you will see a larger version. The diagram explains the transfer of heat through copper to the butter in terms of the particle theory of matter in The Butter Melting experiment posted earlier on the blog by Dr Noot. The warm water means that the water particles have high kinetic energy. they are moving fast. They bump into the copper particles and transfer kinetic energy to them. then the kinetic energy is transferred along the copper particles by a kind of domino effect until the energy reaches the butter. The butter particles get kinetic energy and start to move faster. the butter melts.
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