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7 Cards in this Set
- Front
- Back
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What is the reason for cooking food? |
•It makes food easier to digest
•It makes food safe to eat
•To make the food more appealing |
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Why is it important to cook your food? |
• It ensures that micro-organisms are destroyed, which make food safe for human consumption.
• It also prevent food poisoning and diarrhoea. |
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What is the definition of cooking food? |
Cooking means applying heat to food. In scientific terms, cooking is transferring energy from a heat source to the food. It is as much about the ways heat changes the food as it is about the heat itself. |
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What is the 3 heat transfer? |
•Conduction
•Convection
•Radiation |
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What is Conduction? |
Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. Conduction occurs more readily in solids and liquids, where the particles are closer to together, than in gases, where particles are further apart. |
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What is Convection? |
Heat convection is a mode of heat transfer by the mass motion of a fluid such as air. Heat convection occurs to the surface of an object where the surrounding fluid of object is heated and moved energy away from the source of heat. |
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What is radiation? |
Radiation is energy that comes from a source and travels through space at the speed of light. This energy has an electric field and a magnetic field associated with it, and has wave-like properties. You could also call radiation electromagnetic waves. |
