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Title
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Heat Flow in Our Atmosphere
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Type
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Primary: Mission Briefing Article
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Operation
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Monster Storms
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Mission:
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Mission 1: The Usual Suspects
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Print Page
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19
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Subjects
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Science | Earth and space science | Energy | Energy transfer | Physical science | Energy | Energy transfer | Heat | Conduction | Convection | Radiation
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Grades
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5 | 6 | 7 | 8
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Keywords
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radiation, convection, conduction, heat transfer, energy transfer, heat flow, heat energy, thermal energy, atom, molecule, electromagnetic radiation, conduct, convect
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Duration
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00:00:00 (HH:MM:SS)
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Audience
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Teachers | Elementary Grades | Junior High
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Created On
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5/17/2007
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Copyright
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Photo courtesy of Peter Haydock, The JASON Project.
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From: Monster Storms Mission 1: The Usual Suspects (pp: 19) |
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Heat Flow in Our Atmosphere Find out about the three different ways heat energy can be transferred as it flows from warm to cooler areas. The processes of radiation, conduction, and convection are explained in this article. |
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Heat energy does not stay in the same place. It flows from hotter places to cooler places. If enough time is allowed to pass, the two places will reach the same temperature and heat will stop flowing. There are three different ways by which heat energy can be transferred.
Radiation—Energy transferred by electromagnetic radiation. The flow of energy from the sun to Earth is an example of radiation.
Conduction—Heat energy can also be transferred between atoms and molecules that are in direct contact. If you have ever touched a hot frying pan, you experienced heat transfer by conduction. Heat flowed from the hot pan to your hand.
Convection—In materials that are capable of flow, such as liquids and gases, heat energy can be transferred by the movement of matter. Warmer liquids and gases are less dense and therefore tend to rise, displacing cooler material, which is forced to sink. This movement forms a convection. This process is very important in transferring heat energy in thunderstorms and hurricanes.
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