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1. GUESS ME!!

4. Caption

6. Understanding Heat Transfer
Conduction
Convection
and Radiation

7. HEAT TRANSFER
 HEAT ALWAYS MOVES FROM A WARMER PLACE
TO A COOLER PLACE.
 HOT OBJECTS IN A COOLER ROOM WILL COOL
TO ROOM TEMPERATURE.
• COLD OBJECTS IN A WARMER ROOM WILL HEAT
UP TO ROOM TEMPERATURE.

8. •Heat transfers in three ways:
•Conduction
•Convection
•Radiation

9. Conduction- is the process by which
heat energy is transmitted through
collisions between neighboring atoms
or molecules.

10. Convection- is the movement of
particles through a substance,
transporting their heat energy from
hotter areas to cooler areas.

11. Cooler, more d____, fluids
sink through w_____, less
dense fluids.
In effect, warmer liquids and
gases r___ up.
Cooler liquids and gases s___.
ense
armer
ise
ink

12. How does heat energy get
from the Sun to the Earth?
There are no particles
between the Sun and the
Earth so it CANNOT
travel by conduction or
by convection.
?
RADIATION

13. Radiation- is energy that comes from a source and
travels through space at the speed of light.

15. An insulator - is a material which does not easily allow
heat and/or electricity to pass through it.
Plastic, wood, rubber and
glass are examples of good
insulators.