21stCScienceC3's profile picture. Bitesize chunks of revision material for OCR 21st Century Science Course C3 - Food Matters.

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@21stCScienceC3

Bitesize chunks of revision material for OCR 21st Century Science Course C3 - Food Matters.

E numbers show that a food additive has passed safety tests. This applies to both natural and artificial additives.


where crops are harvested elements such as nitrogen, potassium and phosphorus are lost from the soil


Organic farming - use manures instead of manufactured fertilizers, rotate crops to reduce pests, use natural predators to control pests.


Intensive farming - aim for as large a yield as possible. large fields, use pesticides, use manufactured fertilizers.


Two types of farming - intensive farming and organic farming. What are the differences between the two?


What are the symptoms of diabetes?


There are two types of diabetes.type 1 no insulin is produced, type 2 not enough is produced or the body stops responding to it.


GCSE C3 - Polymers in food = proteins and carbohydrates


Food additives = colourings, antioxidants, perservatives, flavourings, sweeteners, stabilizers, emulsifiers


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United States 趨勢

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