Heat Transfer

Metals are good conductors of heat because the atoms in metal have free electrons whizzing about outside atoms. Suppose the bottom of two spoons touch hot water(one plastic, one metal.) The metal one would heat up much faster because once the free electrons became hot, they would whiz aroud a little faster. Every time a hot electron bounced off of an atom, that atom would vibrate a little quicker, heating up. Good conductor means it can conduct heat fast. Conduction is related to a state of matter because conduction is how the heat transfers through objects and in the states of matter unit we learned and did experiments about the molecules speeding up.

Hot water and air rises because of the Principal of Buoyancy. When water or air heats, the molecules move quicker and spread out making it less dense. When it is less dense, it rises up. Higher up it cool, making it more dense so it would go down again. When this happens again and again it is the Principal of Buoyancy. This relates to the states of matter unit because during our experiments we realized that the water followed the Principal of Buoyancy when things floated.

Thermal Radiation can be transfered from a campfire to a human by energy waves through air or even empty space. When the waves reach the person, it heats up the molecules making them vibrate a little faster making you feel hot. This relates to the States of matter unit because when we heated water or any liquid and we put our hands over it, we could feel the heat.

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