chemistry studies the properties of matter and energy and how they interact with each other. in fact physics is also defined in the same way. chemistry and physics are an integral part of physical science. chemistry specifically studies the properties of the substances and their interactions with different types of matter, especially when they involve electrons.
chemistry is all around you if you notice. chemical reactions are taking place within our body, and outside in our natural environment all the time. however, we may not know about it unless we study or read about them, and then understand them. most of the chemical reactions are not visible to our naked eye.
chemistry is basically the study of everyday chemicals that are very much present around us and available, and that which can be applied in real life. these chemicals can be applied in many ways like in the kitchen. the kitchen is the ideal lab where people can experience various chemical reactions and even study them. they need not do anything special. they can simply do what they do in the kitchen everyday and still observe the chemical reactions that occur.
a simple task like boiling of water is a chemical reaction. we all know that water boils at 100 degrees centigrade. when we boil water everyday, we can observe this.
tamarind is a simple ingredient used in cooking in several dishes. it gives that extra tangy taste that you are looking for. however, when you cook or store tamarind in aluminum container, it releases certain types of chemicals into foods. when you learn about this, you would avoid cooking tamarind based substances in aluminum vessels, or storing tamarind in an aluminum container. a saturation point is when the water cannot dissolve anymore sugar or salt. this is why food ends up tasting very salty or sweet as it can take in no sugar or salt.
checking the temperature when we feel feverish using a thermometer is a simple chemical process we do sometimes. the mercury in the thermometer rises if the body temperature is high. when we touch certain chemicals like chlorine we can burn the skin. this is because of the chemical properties of these chemicals that are causing this burning sensation.
chemistry comes in use for killing pests and rodents at home. when we use naphthalene balls at home we are using a product of chemistry. many of us use pickling as a method to preserve vegetables. pickling is a simple chemical process that involves the process of osmosis.
Moscow is a extremely large, ancient and beautiful city, capital and the main symbol of Russia.The Kremlin in Red Square remains the official residence of the highest power:a King in the past and the President now.The biggest Russian business companies and trading centers are located in Moscow. There are several international airports, nine railway stations, and the comfortable subway. Now, Moscow is a megacity, attractive for tourists from all the world. Red Square, the big Theater, a lot of museums and famous Arbat Street make every visit to Moscow unforgettable.
Объяснение:
Москва- невероятно большой, древний и красивый город, столица и главный символ России. Кремль на Красной площади остаётся официальной резиденцией высшей власти: Короля и Президента сейчас. Крупнейшие российские бизнес-компании и торговые центры расположены в Москве. Там есть несколько международных аэропортов, девять вокзалов и удобное метро. Сейчас Москва является мегаполисом,привлекательным для туристов со всего мира. Красная площадь, Большой театр, много музеев, знаменитая улица Арбат делают каждое посещение Москвы незабываемым.
I'd have one for the first and second years and also for the third and fourth years. The playgrounds would be separate, one for the young children and the other for the senior forms. A wall would be separating them and there would be a door from one playground to the other.
The classrooms would have carpets instead of lino. The desks would be painted and the chairs would have cushions. The chairs would also be painted.
There would be a computer for every table in the classroom. There would be at least 12 videos for each classroom. The hall would be very big, about 40 metres long and 30 metres wide.
The lessons would be interesting. There would be lots of French and German and English.
There would be four floors at the school. There would be a lift to take us up. The staffroom would be much bigger than the one we have now.
It would be light and cosy. There would also be a big library. There would be a lot of instruments: flutes, guitars, drums, etc.
The school meals would have different food every day. There would be lots of visits to concerts and parks.
The tests would be easier for children.
Перевод:В школе, которая бы мне понравилась, был бы плавательный бассейн.
Я бы занимался там в первый и второй годы обучения, а также в третьем и четвертом классах. Площадки были бы отдельными: одна — для младших школьников, а другая — для старшеклассников. Их бы разделяла стена с дверью.
В классных комнатах вместо линолеума лежали бы ковры. Парты были бы разукрашены, а на стульях были бы подушки. Стулья тоже были бы разукрашенными.
На каждом столе был бы компьютер. В каждой классной комнате было бы, по меньшей мере, двенадцать видеомагнитофонов. Коридор был бы очень большой: около 40 м в длину и 30 м в ширину.
Уроки были бы интересными. Проводилось бы много уроков французского, немецкого и английского.
Школа была бы четырехэтажной. В ней был бы лифт, чтобы подниматься вверх. Учительская была бы намного больше, чем сейчас.
Она была бы светлой и уютной. В школе была бы большая библиотека, много музыкальных инструментов: флейты, гитары, барабаны и т. д.
Питание в школе было бы разнообразным. Организовывались бы посещения концертов, парков.