Radiation
Radiation
Convection
Convection
Convection (steam)
Conduction (iron plate)
Radiation
Radiation (coals)
Convection (air)
Conduction (grill)
Convection (oven)
Convection
Conduction (gloves)
Conduction
Radiation (flame)
Conduction (pan)
Convection
Demonstrations
Label: (1) Heat source (2) Direction(s) heat is moving (3) Describe
type of heat transfer
Match Demonstration
Wax Dot Demonstration
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.
2.
3.
4.
5.
6.
7.
–
–
–
–
Fill the plastic container with room temperature water—
about 5 cm deep
Place a cup of ice under one side of the container and a
cup of hot water under the other
Let the water settle (allow time for the cold section to
cool and warm section to warm)
Use two droppers for the dye colors
Cold section—Blue dye
Hot section—Red dye
At the same time release 2-3 drops of dye above the
correct sections
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?
Clearly state what type of heat transfer this is
RESULTS
Cold water
Hot water