1) Why do we cook food? a) kills harmful bacteria b) texture is improved c) taste is improved d) it makes it easier to digest 2) Why is cooking a chemical change? a) because things change colour b) because it is irreversible c) because an energy change happens in the food d) because new substances are made 3) What things can be added to food to make them rise? a) alcohol b) yeast c) baking powder d) salt 4) The main food additives are: a) antioxidants b) water c) emulsifiers d) protein 5) washing up liquid is: a) solute b) insoluble c) emusifier d) emulsion 6) mayonnaise is: a) emulsifier b) food additive c) emulsion d) none of these 7) When we add an organic acid to alcohol we make: a) an ester b) carbon dioxide c) hydrocabon d) catalyst 8) A substance that dissolves in a liquid is a a) solvent b) solute c) molecule d) solution 9) Chemical reactions can make: a) heat b) light c) sound d) electricity 10) When heat is transferred to its surroundings in a chemical reaction: a) it is an endothermic reaction b) it is an exothermic reaction c) the test tube gets hotter d) the test tube gets colder

Quiz 1 C1

by Anonymous
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