This lesson is about heat. Heat
is the transfer of energy
from one substance to another because of a difference in temperature between the two substances. Heat is transferred from a hotter object to a colder object. This can happen in one of three ways: by conduction
, by convection
, or by radiation
. We'll tell you more about heat transfer in a minute. But first we need to tell you a little bit about energy.
to see the full lesson.
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