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Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.
Each student is given the same questions, and their answers are scored in the same way. The teacher gives different questions to different students: an easy test for poor students, another test for most students, and a difficult test for the best students. Music Audition: All musicians play the same piece of music.
Mathematics and science exams are problem sets but some science questions also require an essay-type answer. Foreign-language exams often have a short translation section as well. The Mathematics and Earth & Life Sciences examinations may occasionally contain some multiple-choice questions ( choix multiples ), but this is rare and, when it ...
The following is a list of notable unsolved problems grouped into broad areas of physics. [1]Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result.
Gottfried Wilhelm Leibniz (or Leibnitz; [a] 1 July 1646 [O.S. 21 June] – 14 November 1716) was a German polymath active as a mathematician, philosopher, scientist and diplomat who is credited, alongside Sir Isaac Newton, with the creation of calculus in addition to many other branches of mathematics, such as binary arithmetic and statistics.
The University of Birmingham (informally Birmingham University) [9] [10] is a public research university in Birmingham, England.It received its royal charter in 1900 as a successor to Queen's College, Birmingham (founded in 1825 as the Birmingham School of Medicine and Surgery), and Mason Science College (established in 1875 by Sir Josiah Mason), making it the first English civic or 'red brick ...
The first influential philosopher to discuss this question specifically was Descartes, and the answer he gave is known as mind–body dualism. Descartes proposed that consciousness resides within an immaterial domain he called res cogitans (the realm of thought), in contrast to the domain of material things, which he called res extensa (the ...
The novel coronavirus was a new strain of coronavirus that had never been detected in humans before. The WHO named this new coronavirus "COVID-19" or "2019-nCov". 2022: The WHO suggests formation of a Global Health Emergency Council, with a new global health emergency workforce, and recommends revision of the International Health Regulations. [48]