Ethics.

Ethics (ἠθικόν) means "moral nature" in Greek language. This science is a part of another study philosophy.

In Ancient Greece Plato and Socrates studied ethics. So, science about human behavior had a long and interesting history.

Ethics had a Golden Rule: "the principle of treating others as you want to be treated."

Students study this science during school lessons. Also, ethics can be part of social studies. Teachers teach children good behavior.

Etiquette had many rules about society and relationships. What can and can't people be asked about. How to start conversations in a place. Good manners are important for etiquette and ethics.

This science changed through history. Many different aspects had their own unique rules for behavior.

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Geography.

Geography (γεωγραφία) is a field of study. It means "earth description" from Greek language. There are two parts of this science: physical geography and human geography.

Physical geography studies about nature and the climate of our planet Earth. Oceans, forests, mountains are different. Somewhere there are volcanoes and hot weather. Somewhere there are plains and fields.

Also, science about Earth explained structure of the planet. Atmosphere, asthenosphere, hydrosphere, crust, rigid mantle, stiffer mantle, outer core, and inner core are parts of Earth.

Human geography is another part of the science about our planet. It studies about people and their countries. Population, economics, culture, politics, languages, territory are show human geography. Name of capitals and other cities of specific country.

Students study different parts of geography during school lessons. Maps and globes help with it. These subjects can be for physical and human geography.

This science is interesting.

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Biology.

Bio means "life" and logy means "study of" in a Greek language. This science is very important for different aspects. There are many people who study biology for their work. For example, doctors, in medicine this science is necessary.

Students start studying this subject in middle school. First they study about nature and organisms. Afterwards, children will know about cells and viruses. There are a lot of them and they are all different.

Animals and their life are part of biology, too. Scientific classification and habitat are studied by this science. Plants and flowers have own kingdoms in nature. Science about life talks about them.

The study of human body is called human anatomy. This is a separate science.

Biology has a long and interesting history. Microscopes help scientists make new discoveries. Food chains, evolutions, and genetics are part of this difficult but interesting subject.

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Tales from childhood: Art teacher.

Sophie liked the art lessons in her school. Children drew beautiful paintings. Also, they created figures from clay. Little Sophie liked these lesssons and their teacher. Young talented woman taught children to draw. The whole class had good grades.

But suddenly this teacher moved to different school. Sophie and her classmates became sad. A new teacher was strict. He criticized children's works often. The girl worried about it. She remembered young talented teacher.

A week later old Sophie's teacher of art has returned. All children in the class were happy! Sophie began to appreciate it more.

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Chemistry.

Chemistry is one of the most important and interesting school subjects. This science has similar parts with physics. There are many formulas and tables.

H₂O is a formula of water. Students can conduct experiments in special rooms during lessons. 

Chemical elements everywhere. Foods, furniture, our body; all of them have chemical elements.

This science may be difficult for someone. Thanks to chemestry we know about salt, sugar, and fats. It is necessary to know in life.

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