1.The water at the boundary with the metal pan becomes hot. Fluids expand when heated and become less dense. So as the water at the bottom of the pot becomes hot, its density decreases.
3.Heat is the transfer of energy from a warmer object to a cooler object. ... Heat can be transferred in three ways: by conduction, by convection, and by radiation. Conduction is the transfer of energy from one molecule to another by direct contact.
4.The stove heats up the pot or kettle the water is in. The heat energy is transferred to the water. Molecules in the water are energized with the transferred heat energy until the boiling point is reached.
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Answer:
1.The water at the boundary with the metal pan becomes hot. Fluids expand when heated and become less dense. So as the water at the bottom of the pot becomes hot, its density decreases.
3.Heat is the transfer of energy from a warmer object to a cooler object. ... Heat can be transferred in three ways: by conduction, by convection, and by radiation. Conduction is the transfer of energy from one molecule to another by direct contact.
4.The stove heats up the pot or kettle the water is in. The heat energy is transferred to the water. Molecules in the water are energized with the transferred heat energy until the boiling point is reached.