Radiation Convection Convection (steam) Conduction (iron plate) Convection.

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Presentation transcript:

Radiation Convection Convection (steam) Conduction (iron plate) Convection

Radiation (coals) Convection (air) Conduction (grill) Convection (oven) Conduction (gloves) Convection Radiation (flame) Conduction (pan) Conduction Convection

Demonstrations Match DemonstrationWax Dot Demonstration Label: (1) Heat source (2) Direction(s) heat is moving (3) Describe type of heat transfer

HYPOTHESIS If we add blue dye above the cold section of the container, then the dye will. If we add red dye above the hot section of the container, then the dye will.

PROCEDURE 1.Fill the plastic container with room temperature water— about 5 cm deep 2.Place a cup of ice under one side of the container and a cup of hot water under the other 3.Let the water settle (allow time for the cold section to cool and warm section to warm) 4.Use two droppers for the dye colors –Cold section—Blue dye –Hot section—Red dye 5.At the same time release 2-3 drops of dye above the correct sections 6.Use words and pictures to describe what you observe –Where is the cold water (blue dye) moving? –Where is the hot water (red dye) moving? 7.Clearly state what type of heat transfer this is

RESULTS Cold waterHot water