Essential Question of the Day
?
What is “Conduction”?
Answer:
Conduction is the
energy that is
transferred by direct
contact.
Examples of Conduction:
 A pot sitting on a hot burner.
 Touching a metal spoon that is sitting in
a pot of boiling water.
 Using a heating blanket to get warm.
 Picking up a hot cup of coffee.
 Putting your wet shoes on a floor vent to
dry them faster.
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Everyday Examples of Heat or Thermal
Conduction
After a car is turned on, the engine becomes
hot. The hood will become warm as heat is
conducted from the engine to the hood.
A radiator is a good example of conduction.
Anything placed on the radiator, like an article
of clothing, will become warm.
You can warm your back muscles with a
heating pad.
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Roasting wieners over a campfire is fun until
the heat from the fire is conducted up the coat
hanger to your hand.
Trying to cross the street barefoot in the
summer may result in heat being conducted
from the asphalt to your feet.
The heat from a hot liquid makes the cup itself
hot.
An ice cube will soon melt if you hold it in your
hand. The heat is being conducted from your
hand into the ice cube.
Hot food will heat a stoneware or porcelain
plate for a time.
If you are cold and someone holds you to
warm you, the heat is being conducted from
their body to yours.
Heat will transfer from a hot burner on the
stove into a pot or pan.
A metal spoon becomes hot from the boiling
water inside the pot.
Chocolate candy in your hand will eventually
melt as heat is conducted from your hand to
the chocolate.
When ironing a skirt, the iron is hot and the
heat is transferred to the skirt.
If you stoke your log fire in the fireplace with a
poker and leave the poker in the fire, it will
become very hot.
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A heat exchanger uses a hot fluid to conduct
heat to a cooler fluid without the two touching.
If you touch a hot stove, heat will be
conducted to your finger and your skin will
burn.
Sand can conduct heat. Walking on the beach
on a hot summer day will warm your feet.
Light bulbs give off heat and it you touch one
that is on, your hand will get burned.
The Earth warms from the light of the sun as
the heat is conducted through the atmosphere
Everyday Electrical Conduction
The wires in your house conduct electricity
and allow lights to come on when you flip the
switch.
With a landline phone, sound waves are
converted into electricity and conducted over
wires to the other person’s phone where they
are converted back to sound waves.
Bio sensing devices read signals that are
conducted from the receptor.
Salt water has properties that allow for
excellent conducting of electricity.
Dirty water conducts electricity much better
than clean water.
Some gases, like oxygen, nitrogen and carbon
dioxide, become good conductors when they
are exposed to different elements. During an
electrical storm, barometric pressure drops
and the atmosphere become denser and these
gases become conductors.
Materials that Are Good Conductors:
 Aluminum
 Brass
 Bronze
 Copper
 Gold
 Graphite
 Iron
 Mercury
 Steel
 Silver
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