Air is a good
insulator as it does not let heat
pass through it very easily.
air can be trapped to form a layer
This insulation can then
prevent heat from moving into an object
as well as preventing heat moving
out of an object.
examples of trapped air as an insulator
are; a thermos, polystyrene cup, oven
mittens, double glazed windows.
Bird keep warm from their feather
and some animals' fur keep then warm.
This is due to air being trapped
between the feathers or hairs and
acts as an insulator.
For our experiment
a good insulator is a kind of material
which keeps things warm for longer,
it helps to stop heat from escaping.
material do you think would make the
cotton cloth, newspaper or a woollen
experiment will help you find out
which materials make the best insulators.