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  2. Laboratory glassware - Wikipedia

    en.wikipedia.org/wiki/Laboratory_glassware

    Three beakers, an Erlenmeyer flask, a graduated cylinder and a volumetric flask. Laboratory glassware is a variety of equipment used in scientific work, traditionally made of glass.

  3. Glossary of chemistry terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemistry_terms

    Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...

  4. Beaker (laboratory equipment) - Wikipedia

    en.wikipedia.org/wiki/Beaker_(laboratory_equipment)

    (A) A low-form or Griffin form beaker (B) A tall-form or Berzelius beaker (C) A flat beaker or crystallizer Philips beaker which can be swirled like a conical flask. Standard or "low-form" (A) beakers typically have a height about 1.4 times the diameter. [3]

  5. National Research and Innovation Agency - Wikipedia

    en.wikipedia.org/wiki/National_Research_and...

    The National Research and Innovation Agency (Indonesian: Badan Riset dan Inovasi Nasional, BRIN) is a cabinet-level agency of the Indonesian government, formed in 2019.. Originally a new agency attached to the Ministry of Research and Technology, which became the Ministry of Research and Technology/National Research and Innovation Agency, the agency was controversially separated and ...

  6. In vitro - Wikipedia

    en.wikipedia.org/wiki/In_vitro

    In vitro (Latin for "in glass"; often not italicized in English usage [3] [4] [5]) studies are conducted using components of an organism that have been isolated from their usual biological surroundings, such as microorganisms, cells, or biological molecules.

  7. Globally Harmonized System of Classification and Labelling of ...

    en.wikipedia.org/wiki/Globally_Harmonized_System...

    The pictogram for harmful substances of the Globally Harmonized System of Classification and Labelling of Chemicals.. The Globally Harmonized System of Classification and Labelling of Chemicals (GHS) is an internationally agreed-upon standard managed by the United Nations that was set up to replace the assortment of hazardous material classification and labelling schemes previously used around ...

  8. Indonesia National Science Olympiad - Wikipedia

    en.wikipedia.org/wiki/Indonesia_National_Science...

    Logo of the competition since 2017. The OSN (Olimpiade Sains Nasional), previously KSN (Indonesian: Kompetisi Sains Nasional) is a science competition for Indonesian students held by the Indonesian Ministry of Education and Culture.

  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.