Introduction:
Did you ever wonder how scientists
know how much energy is in the foods we eat? When you look
at the package that food comes in, it tells you how much energy it
contains. How do they know that?
Snack food contain chemical energy
in the form of oils, sugars, starch and some other hydrocarbons. In
our body such energy will be used to keep us warm and perform
other biological functions.
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