known by a lot of people

sławny, znany
someone whose job or education is about science

naukowiec, badacz
a country located in Eastern Europe and Northern Asia

Rosja, Federacja Rosyjska
one's brother or sister

brat lub siostra, rodzeństwo
a university in which students can study up to a bachelor's degree after graduation from school

uniwersytet, wydział
a branch or an area of knowledge that we study at a school, college, or university

przedmiot, dyscyplina
liked or preferred the most among the rest that are from the same category

ulubiony, preferowany
the branch of science that is concerned with studying the structure of substances and the way that they change or combine with each other

chemia, nauka o substancjach
a test done to prove the truthfulness of a hypothesis

eksperyment
any of the simple chemical substances that consist of atoms of only one type, such as gold, oxygen, carbon, etc.

pierwiastek chemiczny, substancja prosta
not like another thing or person in form, quality, nature, etc.

inny
a chemical element in gas form with no color that living things need for breathing

tlen, O₂
a metallic chemical element with a silvery-gray appearance, widely used for making tools, steel, buildings, and various industrial products

żelazo, metal
a regular and distinct sequence that can be found in certain situations

wzór, schemat
to estimate or form a conclusion about something without sufficient information to verify its accuracy

zgadywać, przypuszczać
a substance that is composed of only one type of atom, typically characterized by specific physical and chemical properties

pierwiastek, składnik
a tabular arrangement of chemical elements organized based on their atomic number, electron configuration, and recurring chemical properties

układ okresowy, układ okresowy pierwiastków
a prize or money given to a person for their great performance

nagroda, wyróżnienie
a university teacher of the highest rank and a member of the faculty at a college or university

profesor, profesor
each of the two organs in the chest that helps one breathe

płuco, płuca
a large musical instrument of the violin family that is held upright and is played by pulling a bow across its strings

wiolonczela, wiolonczela
