Методическая разработка по английскому языку для студентов факультета химии и химической технологии " Simple Chemistry" Алматы 2017
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мет. разработка по химии
- Бұл бет үшін навигация:
- Unit 8
| Ex.7 Read and translate the text.
Types of Mixtures. There are many kinds of mixtures. We classify them by the behavior of the phases or substances that we mix. A homogeneous mixture is uniform, which means that any given sample of the mixture will have the same composition. Air, sea water, and carbonation dissolved in soda are all examples of homogeneous mixtures, or solutions. No matter what sample you take from the mixture, it will always be composed of the same combination of phases. Chocolate chip ice cream is not homogeneous—one spoonful taken might have two chips, and then another spoonful might have several chips. An example for a homogeneous mixture is a solution. The substance that gets dissolved is the solute. The substance that does the dissolving is the solvent. Together they make a solution. If you stir a spoonful of salt into a glass of water, salt is the solute that gets dissolved. Water is the solvent. The salty water is now a solution, or homogeneous mixture, of salt and water. When we mix different gases, they always form a solution. The gas molecules quickly spread out into a uniform composition. Vocabulary mixture – смесь to classify –классифицировать behavior – поведение phase –фаза substance –вещество to mix – смешивать homogeneous mixture – однородная, гомогенная смесь uniform –равномерный sample –образец composition – состав air – воздух sea – море water – вода сarbonation - насыщение углекислотой to dissolve – растворять soda -сода example – пример solution – раствор no matter what sample – не имеет значения какой образец combination - состав, cоединение chocolate – шоколад, шоколадный chip – кусок ice cream – мороженое one spoonful – одна ложка solute –растворенное вещество solvent –растворитель to stir – размешивать salt –соль glass of water –стакан воды to mix – смешивать different – разный to form – формировать molecule –молекула quickly –быстро to spread out -распространяться heterogeneous – неоднородный, гетерогенный concrete –бетон, конкретный soil –почва blood –кровь salad – салат Unit 8жүктеу/скачать 422,31 Kb. Достарыңызбен бөлісу:
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