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2. Free High School Science Texts - Wikipedia

   en.wikipedia.org/wiki/Free_High_School_Science_Texts

   The Free High School Science Texts (FHSST) organization is a South African non-profit project, which creates open textbooks on scientific subjects. Textbooks are edited to follow the government's syllabus , and published under a Creative Commons license (CC BY [ 1 ] ), allowing teachers and students to print them or share them digitally.

3. Chemistry - Wikipedia

   en.wikipedia.org/wiki/Chemistry

   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.

4. Outline of physics - Wikipedia

   en.wikipedia.org/wiki/Outline_of_physics

   Physics – branch of science that studies matter [9] and its motion through space and time, along with related concepts such as energy and force. [10] Physics is one of the " fundamental sciences " because the other natural sciences (like biology, geology etc.) deal with systems that seem to obey the laws of physics.

5. State of matter - Wikipedia

   en.wikipedia.org/wiki/State_of_matter

   Quark matter or quantum chromodynamical (QCD) matter is a group of phases where the strong force is overcome and quarks are deconfined and free to move. Quark matter phases occur at extremely high densities or temperatures, and there are no known ways to produce them in equilibrium in the laboratory; in ordinary conditions, any quark matter ...

6. Science education - Wikipedia

   en.wikipedia.org/wiki/Science_education

   Physics education is characterized by the study of science that deals with matter and energy, and their interactions. [11] Physics First, a program endorsed by the American Association of Physics Teachers, is a curriculum in which 9th grade students take an introductory physics course. The purpose is to enrich students' understanding of physics ...

7. Matter - Wikipedia

   en.wikipedia.org/wiki/Matter

   A definition of "matter" based on its physical and chemical structure is: matter is made up of atoms. [17] Such atomic matter is also sometimes termed ordinary matter. As an example, deoxyribonucleic acid molecules (DNA) are matter under this definition because they are made of atoms.