Why do you keep warmer
wearing several layers of
clothes, rather than one
thick layer?
How will putting insulation in
my loft save me money?
Why does the ice not melt,
even though the water is
boiling at the top?
Water
Ice cube
Why do birds fluff up
their feathers when it is
cold?
Why are metal saucepans
better than glass ones?
If I use cork table mats
my dinner stays hot for
longer – why?
How does my quilt keep
me warm?
Why are frying pan
handles made from plastic,
and not metal?
Why is frozen food
transported in
polystyrene boxes?