Questions with the keyword 'energy'

How do you convert chemical enenergy on food to heat energy by Peter. C 21 to Aislinn, Fiona, Nathan, Padraic, Sinead Comments: (No comments so far )
how does heat move?? by avab189 to Nathan Comments: (No comments so far )
will cars ever run on water by jasbox1278986968 and 1 other. to Padraic, Aislinn, Fiona, Nathan, Sinead Comments: (No comments so far )
what are biofuels?? by freddo to Aislinn, Fiona, Nathan, Padraic, Sinead Comments: (No comments so far )