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  2. Ninth grade - Wikipedia

    en.wikipedia.org/wiki/Ninth_grade

    In the social studies curriculum, there are a variety of different courses that may be offered depending on school district. For example students may take a geography class, a government class, or a world history class. [54] In the science curriculum, ninth grade students are required, in most areas, to take biology.

  3. 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 universe. [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 social sciences (e.g., economics, psychology, and sociology), which ...

  4. List of unsolved problems in biology - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    [8] [9] What do all the unknown proteins do? Two decades since the first eukaryotes were sequenced, the "biological role" of around 20% of proteins are still unknown. [10] Many of these proteins are conserved across most eukaryotic species and some are conserved in bacteria, indicating a role fundamental for life. [10] [11] [12] Determinants of ...

  5. For instance, in a study on Arabidopsis thaliana, biologically important regions of the plant's genome were found to be protected from mutations, and beneficial mutations were found to be more likely, i.e. mutation was "non-random in a way that benefits the plant". [146] [147] [148]

  6. Textbook - Wikipedia

    en.wikipedia.org/wiki/Textbook

    In his book, Surely You're Joking, Mr. Feynman!, the late physics Nobel Prize laureate Richard P. Feynman described his experiences as a member of a committee that evaluated science textbooks. [58] At some instances, there were nonsensical examples to illustrate physical phenomena; then a company sent – for reasons of timing – a textbook ...

  7. Science education - Wikipedia

    en.wikipedia.org/wiki/Science_education

    Science is a universal subject that spans the branch of knowledge that examines the structure and behavior of the physical and natural world through observation and experiment. [9] Science education is most commonly broken down into the following three fields: Biology, chemistry, and physics.

  8. Eleventh grade - Wikipedia

    en.wikipedia.org/wiki/Eleventh_grade

    Main subjects: Spanish, English, Physical education and philosophy. Science: math, physics and chemistry and biology and geology (health-orientated degrees) or technical drawing. Humanities/Sociology: Latin and Greek or math oriented for sociology and economy, history and literature. Arts: music, drama class, design, history of art.

  9. AP Environmental Science - Wikipedia

    en.wikipedia.org/wiki/AP_Environmental_Science

    This course is designed to provide students with scientific principles, concepts, and methodologies necessary to comprehend the relationships abundant within the natural world, to identify and analyze environmental problems, to evaluate relative risks associated with these identified problems, and to examine alternative solutions for resolving and/or preventing similar problems facing the ...