Energy provided by food: practical
I can calculate the amount of energy provided by different foods by measuring a change in temperature.
Energy provided by food: practical
I can calculate the amount of energy provided by different foods by measuring a change in temperature.
Lesson details
Key learning points
- Different foods provide different amounts of energy.
- The amount of energy provided by different foods can be investigated and compared by burning them.
- Burning foods can heat water and the temperature change of the water measured.
- The mean temperature change can be calculated from repeat measurements.
- Energy provided by the food (J) = mass of water (g) x rise in temperature (°C) x 4.2
Keywords
Temperature change - The difference in the starting and end temperature of a substance.
Mean - An average of several measurements, which is calculated by adding them up and dividing by the number of measurements.
Mass - The amount of matter in an object.
Variable - A variable is a factor that can be varied or measured in a science experiment.
Common misconception
Control variables make it a fair test.
Control variables need to be kept the same to make the investigation valid.
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
