What are atoms? over two thousand years ago, about 400 b.c., the greek philosopher democritus tried to figure out what the world is made up of and how it came to be the way it is. he came to the conclusion that all things are made up of tiny particles, too small to be seen. there are many kinds, he
thought, and they are always moving about, sometimes combining, and sometimes separating again.democritus deserves tremendous credit for giving us this theory.in the past people believed in many ideas which new knowledge and experience later proved false1. but all the discoveries of science in over
two thousand years of work and study show that democritus was right.investigations by chemists have shown that every chemical compound, such as salt or water, is made up of many tiny particles called molecules. in solids and liquids they are packed closely together. in gases they are spread out
thin, with big spaces separating the molecules from each other. each molecule in a compound is the same as all the other molecules in the same compound, but it is different from the molecules in other compounds. since there are thousands of different compounds, there are thousands of different kinds
of molecules, ranging from simple ones, like the molecules of salt or water, to very complicated ones found only in living things.further study has shown that the molecules themselves are made up of still smaller particles known as atoms. although there are thousands of different molecules, there
are only 103 different kinds of atoms. these 103 different kinds of atoms, known as the chemical elements, are the building blocks out of which all material things are made.выпишите из текста существительные в единственном числе и поставьте их во множеством числевыпишите из текста предложенные
конструкции с предлогом of и переведите их на языквыпишите из текста прилагательные и наречия , переведите их на язык нарисуйте в тексте и переведите на язык предложения в которых употреблены местоимения .укажите, к какой группе они относятся(личные, притяжательные, указательные , вопросительные,
относительные)выпишите и текста не правильные глаголы, запишите их основные формы и переведите их на языквыпишите из текста предложения в present simple и переведите их на язык .напишите предложения в вопросительной и отрицательных формах