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  2. Open textbook - Wikipedia

    en.wikipedia.org/wiki/Open_textbook

    Open textbook. An open textbook is a textbook licensed under an open license, and made available online to be freely used by students, teachers and members of the public. Many open textbooks are distributed in either print, e-book, or audio formats that may be downloaded or purchased at little or no cost. [1]

  3. Natural science - Wikipedia

    en.wikipedia.org/wiki/Natural_science

    v. t. e. Natural science is one of the branches of science concerned with the description, understanding and prediction of natural phenomena, based on empirical evidence from observation and experimentation. [1] Mechanisms such as peer review and reproducibility of findings are used to try to ensure the validity of scientific advances.

  4. Science education - Wikipedia

    en.wikipedia.org/wiki/Science_education

    Science education is the teaching and learning of science to school children, college students, or adults within the general public. The field of science education includes work in science content, science process (the scientific method), some social science, and some teaching pedagogy.

  5. Scientific law - Wikipedia

    en.wikipedia.org/wiki/Scientific_law

    Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena. [1] The term law has diverse usage in many cases (approximate, accurate, broad, or narrow) across all fields of natural science ( physics , chemistry , astronomy , geoscience , biology ).

  6. Biology - Wikipedia

    en.wikipedia.org/wiki/Biology

    The earliest of roots of science, which included medicine, can be traced to ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. [11] [12] Their contributions shaped ancient Greek natural philosophy. [13] [11] [12] [14] [15] Ancient Greek philosophers such as Aristotle (384–322 BCE) contributed extensively to the development of ...

  7. Science - Wikipedia

    en.wikipedia.org/wiki/Science

    Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the world. [1] [2] Modern science is typically divided into two or three major branches: [3] the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; and the behavioural sciences (e.g., economics, psychology, and sociology), which ...

  8. Environmental science - Wikipedia

    en.wikipedia.org/wiki/Environmental_science

    Environmental science is an interdisciplinary academic field that integrates physics, biology, meteorology, mathematics and geography (including ecology, chemistry, plant science, zoology, mineralogy, oceanography, limnology, soil science, geology and physical geography, and atmospheric science) to the study of the environment, and the solution of environmental problems.

  9. List of secondary education systems by country - Wikipedia

    en.wikipedia.org/wiki/List_of_secondary...

    Nigeria. In Nigeria, secondary school starts from JSS1 - grade 7 (age 12–13) until SSS3 - grade 12 (age 17–18). Most students start at the age of 10 or 11 and finish at 16 or 17. Grade 6 is mostly skipped, but those students who did grade 6 normally start grade 7 (JSS 1) at the age 11 or 12.