Contraction
when hot air goes to a cold place to heat it up. The water was heating up in the Bunsen burner to cause the particles to speed up and be concentrated. The particles diffused and contracted the air to cause the can to implode.
Conduction
Heat travelling through solid/liquid. We had the heat from the Bunsen burner travelling through the metal rod vibrating the pins to make them fall when we did the experiment.
Expansion
When something expands from the heat. expansion is when something Bros because of heat up some metals I can get bigger.
Convection in gas
The heat travels through liquid or gas. Heat travelling through the teabag.
Convection in liquid
heat travelling through the water to make the colour change.
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