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==Key Stage 3==
===Meaning===
A '''Calorie''' is a non-scientific unit for [[energy]] which is used to state the [[Balanced Diet#Energy in Food|energy in food]] and the [[energy]] required to [[exercise]].
===About Calories===
: A calorie is the energy needed to heat 1 [[gram]] of water by 1 degree Celsius.
: The average adult male human needs 2500,000 [[Calorie]]s per day.
: The average adult female human needs 2000,000 [[Calorie]]s per day.
===Unit Comparisons===
{| class="wikitable"
| style="height:20px; width:100px; text-align:center;" |'''[[Unit]]'''
| style="height:20px; width:100px; text-align:center;" |'''In Calories'''
|-
| style="height:20px; width:50px; text-align:center;" |1 [[kilocalorie]]
| style="height:20px; width:50px; text-align:center;" |1000Cal
|-
| style="height:20px; width:50px; text-align:center;" |1 [[Joule]]
| style="height:20px; width:50px; text-align:center;" |0.24Cal
|-
| style="height:20px; width:50px; text-align:center;" |1 [[kilojoule]]
| style="height:20px; width:50px; text-align:center;" |240Cal
|}
==Key Stage 4==
===Meaning===
A '''Calorie''' is a non-scientific unit for [[energy]] which is used to state the [[Balanced Diet#Energy in Food|energy in food]] and the [[energy]] required to [[exercise]].