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How much energy is there in food?
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Controlling body mass
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Preserving food
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A model for natural selection – spaghetti worms
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Hazards of defrosted food
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Quantitative food test: protein content of powdered milk
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Evaluating methods of pest control
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Food production
Growing plants to eat is one of the simplest ways to produce food. We can apply our knowledge and understanding of biology to make even this simple process more efficient and productive. This could involve improving the quality of the soil and the...
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Food preservation
The modern food industry is hugely important to our society. These practicals focus on how food can be treated to prolong its storage time. Experiments
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Investigating factors affecting the heart rate of Daphnia
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Energy in food
Perhaps our most immediate connection with energy is the energy in our food. Releasing the energy by burning gives an insight into the total energy available in a sample of foodstuff. Experiments
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Quantitative food tests
Qualitative food tests will be familiar to teachers. There are some protocols available for making estimates of the quantity of different foodstuffs (protein, starch or reducing sugar) in certain foodstuffs. Experiments
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What's in our food?
Food tests for starch, sugar, protein and fat are very familiar, but tests for biomolecules such as vitamin C are less well known. Experiments
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Preserving food
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Investigating the resting posture of peppered moth larvae
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Investigating transport systems in a flowering plant
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Brine date
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Investigating what makes fruit go brown
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A simple model for natural selection
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Using a choice chamber to investigate animal responses to stimuli