Isotope (Ισότοπο) means isos (ἴσος) "equal" and topos (τόπος) "place". These are varieties of the same chemical element.
Isotopes have the same atomic number, but they have different mass numbers.
These elements are studied in chemistry.
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Archaeology (ἀρχαιολογία) (archaiologia) is the study about material culture. ἀρχαῖος, arkhaios, means "ancient" and -λογία, -logia, means "-logy".
Various things that archaeologists find can tell us about the past. Also, it's important to history.
Archaeology related with other science paleontology.
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Maria was a kind child. When she was three years old, she lived in boarding school. Maria liked it there and had a good relationship with the teachers and students.
There she received a good education. It was very important for Maria's future.
"I'm glad that I studied in it." Maria said many years later.
Indeed, in this place she was able to find her friends.
“Today we go to the forest to pick mushrooms and berries,” Lara’s grandfather said.
“Very good!” Sophie thought.
Many children have been waiting for this trip to the forest for a long time. Now that day has come.
Sophie and Natalie walked side by side and imagined how they would find mushrooms and berries there.
But then it turned out that people need to carefully look for the right mushrooms and berries. Not all fruits in the forest were edible.
“Also, there are different kinds of mushrooms,” grandfather said.
“This is how it turns out in reality!” Sophie said.
“Yes, we need to study how to find mushrooms and berries,” granddad said.
Sophie listened to what people said about things in the forest.
Also, many children from the group noticed that even just to get out of the forest, knowledge is needed.
It was a Friday morning. Sophie went to school. Two days ago her teacher said that she won’t be on Friday. Little Sophie remembered about it.
When she entered the classroom, the children were talking loudly. There was no one in teacher’s place. The students felt free, they just wanted to have fun.
Suddenly, one boy who had problems with discipline said that they can go home because the head teacher let us go. Therefore, some children decided that this is actually the case. So, the whole class went to the locker room and there this boy told the nanny that the head teacher “let us go”. About more than half class went home.
Sophie looked at this all in thought. How can they just leave school lessons?
But only a few conscientious and responsible students decided to stay at school and study. Sophie was among them.
Another teacher came to the class and began to study with the children.
Meanwhile, the nanny decided to go to the head teacher and ask if she let this class go home.
“This boy told me that you let them go,” the nanny said.
The head teacher looked sternly, and then said:
“Did you come up to me? Did I let you go? What is this anyway?! This is what a self- righteousness! After school lessons I’m waiting for you in my classroom.”
Sophie thought about it for a long time. At home she was praised for staying at school.
On Monday, when the teacher came at school, she found out everything. So, she took exercise books from those who left school on Friday and noted it for their parents. Also, the homeroom teacher said that leaving is just bad.
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Logic (λογική) is a science about rules and arguments. It means "mind" in Ancient Greek language.
Also, logic is a part of other sciences, such as: mathematics and philosophy. Many scientists study logic.
There are different logical paradoxes. This is when contradictions in meaning meet each other.
In logic, reasoning and facts are important. Everything must be provable. On this can form a personal opinion.
The science has a long and interesting history.
Logic helps to analyze and do conclusions. It happens to be necessary in different life situations.
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Anthropology is a field of study. The Greek word ánthrōpos (ἄνθρωπος) means "human". Another Greek word lógos (λόγος) means "study".
This science studies human behavior, human biology (βιολογία), and societies. There is a cultural anthropology.
This branch of study appeared in ancient Greece. Scientist and philosopher Aristotle (Ἀριστοτέλης) used this word. Anthropology studied human nature and soul.
The science of human has evolved over the centuries. In XVIII and XIX centuries, anthropology was formed. History, culture, language, and psychology are parts of anthropology.
Many scientists and philosophers did a lot of for this science. Among them were Leonardo da Vinci and Carl Linnaeus.
Also, anthropology studies primitive society and human body.
Archaeologists find various excavations.
Students study this science in colleges and universities.
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