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  2. Flame test - Wikipedia

    en.wikipedia.org/wiki/Flame_test

    A flame test is relatively quick test for the presence of some elements in a sample. The technique is archaic and of questionable reliability, but once was a component of qualitative inorganic analysis .

  3. List of Advanced Level subjects - Wikipedia

    en.wikipedia.org/wiki/List_of_Advanced_Level...

    In other projects Wikidata item; Appearance. ... This is a list of Advanced Level (usually referred to as A-Level) subjects ... Science in Society [7] [9] Use of ...

  4. A-level - Wikipedia

    en.wikipedia.org/wiki/A-level

    The A-level (Advanced Level) is a subject-based qualification conferred as part of the General Certificate of Education, as well as a school leaving qualification offered by the educational bodies in the United Kingdom and the educational authorities of British Crown dependencies to students completing secondary or pre-university education. [1]

  5. Metal halides - Wikipedia

    en.wikipedia.org/wiki/Metal_halides

    where M is the metal, X is the halogen, and MX n is the metal halide. Sample of silver chloride. In practice, this type of reaction may be very exothermic, hence impractical as a preparative technique. Additionally, many transition metals can adopt multiple oxidation states, which complicates matters. As the halogens are strong oxidizers ...

  6. National Assessment of Educational Progress - Wikipedia

    en.wikipedia.org/wiki/National_Assessment_of...

    For example, the Nation's Report Card reported "Males Outperform Females at all Three Grades in 2005" as a result of science test scores of 100,000 students in each grade. [14] Hyde and Linn criticized this claim, because the mean difference was only 4 out of 300 points, implying a small effect size and heavily overlapped distributions. They ...

  7. California Assessment of Student Performance and Progress

    en.wikipedia.org/wiki/California_Assessment_of...

    In March 2013 it was announced that the STAR testing system was set to expire in July 2014, and California would replace STAR tests with more in-depth exams in two years in 2015. [4] [5] These new exams would follow the new Common Core State Standards and have requirements for in-depth essays and projects that students will complete on ...

  8. Nondestructive testing - Wikipedia

    en.wikipedia.org/wiki/Nondestructive_testing

    Maintenance testing – Identify equipment problems through routine testing; Materials science – Research of materials; Nondestructive Evaluation 4.0 – A concept of industrial testing and evaluation for the digital age; Predictive maintenance – Method to predict when equipment should be maintained

  9. 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.

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