Download Conductionconvectionandradiation

Heat energy can pass through solids, liquids and gases. Heat energy can
be transferred from hot areas to cool areas in 3 ways.
The 3 methods are
conduction, convection and radiation.
Conduction
This is the movement of heat energy from hotter parts to
cooler parts without any movement of the substance itself.
1- What happens to a metal rod when it is place in hot water?
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3- Can you explain why? Try to use words like particles, energy,
transfer in your answer.
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Convection
This is the transfer of heat through the movement of particles
from hotter parts to cooler parts.
1-Draw a diagram to show what happens when water is heated.
Radiation
This is the transfer of heat energy by waves. This type of
energy transfer can travel through space.
1-Why can you feel the heat from a fire when sat near it?
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2- Why will an ice-cream melt in the sunshine?
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3- Why should we wear a hat in cold weather to keep warm?
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Describe and explain how we can stop heat escaping from
our homes. What are the different methods of insulation
and how do they stop heat from escaping?