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Give three examples of chemical changes. If you are using a blender or a food processor, what type of changes are you making to food? How can the process of cooking food in an oven or a microwave make changes in foods?
Each time you follow or modify a recipe (in baking, it is actually called a formula), you conduct kitchen chemistry experiments with acids and bases, emulsions and suspensions, gels, and foams. If you have ever cooked or baked, you know how to denature proteins and crystallize compounds.
Children could work in groups to first look at different mixtures, solid-solid, liquid-liquid, and solid-liquid. They could look at which solids and liquids make solutions, and which do not, before investigating how to separate different mixtures.
These videos demonstrate the key cooking skills that pupils between 11 and 16 years should learn and use in their food preparation. The videos include instructions on how to use kitchen equipment safely, how to weigh and measure accurately, how to prepare different types of ingredients, and how to put these skills together to make dishes.
12 Οκτ 2021 · Pure substances, like water and diamonds, retain their composition through physical changes, while mixtures combine multiple pure substances. The video distinguishes between homogeneous and heterogeneous mixtures, using examples like chocolate milkshake and salad to illustrate the concepts.
Mixing bowl. 'Rubbing in' is a technique where flour is rubbed into a fat to make dishes such as shortcrust pastry, crumbles and scones. -Using your fingertips, rub the flour and butter together...
In this video, education coordinator Ross demonstrates how to separate mixtures with a few pieces of kitchen equipment. This simple activity can be set for learners to try at home with a responsible adult or used as a classroom experiment.
