Heat Travels from Hot to Cold
1. Conduction is a method of heat transfer through
particles from one part of a substance to its adjoining
parts
Heat Travels from Hot to Cold
1. Conduction
Put a pan on a stovetop and turn on the heat. The metal
sitting over the burner will be the first part of the pan to
get hot. The heat will transfer from a hot burner on the
stove into a pan.
Heat Travels from Hot to Cold
2. Convection-is the flow of heat caused by the motion
of a liquid or a gas. It is known for having a circular
pattern in heat transfer. Convection occurs only in
liquids and gases.
Heat Travels from Hot to Cold
2. ConvectionA good example of this is the heating of
water in a kettle. As water is heated, the
molecules that make up the water rise, and
the heat spreads. It is a circular flow of rising
warm water and falling cooler water sets up.
Heat Travels from Hot to Cold
3. Radiation is the transfer of energy in the
form of waves. Radiant energy travels very
fast like the light. Energy is radiated from
the sun through empty space or air directly
to materials (Lemi, 2007).
Heat radiation is the flow of
heat between objects that are
not in contact with each other.
Another example is the heat
felt by someone sitting near a
distant fire.
conduction
radiation
convection
sun
metal
______1. method of heat transfer through
particles from one part of a substance to its
adjoining parts
______2. . good conductor of heat
______3. the flow of heat caused by the motion
of a liquid or a gas
conduction
radiation
convection
sun
metal
______4. the main source of heat
and light
______5. the transfer of energy in
the form of waves
Write conduction, convection, or
radiation on a sheet of paper
6.
7.
Write conduction, convection, or
radiation on a sheet of paper
8.
9.
Write conduction, convection, or
radiation on a sheet of paper
10.
1. What kind of heat transfer
happens when the sun is heating
your body?
A. conduction
B. radiation
C. convection
D. x-ray
2. How does the heat of the iron transfer
to the skirt during ironing?
A. conduction
B. radiation
C. convection
D. No heat transfer
3.When a pot is touching a stove that is
on, what heat transfer is happening?
A. conduction
B. radiation
C. convection
D. No heat transfer
4. How heat is transferred?
A.conduction only
B.convection only
C. radiation only
D. conduction, convection and
radiation
5. How does the heat of the sun reach
the Earth?
A.condensation
B.convection
C.conduction
D.radiation
conduction
convection
radiation
_____6. ironing a wrinkled shirt
_____7. cooking food in a microwave
_____8. the sun warming the surface of the rock
_____9. the spoon in a bowl of soup becomes
warmer
_____10. melting of ice on your hand