Chemistry (Wikipedia)
Chemistry is the scientific study of the properties and behavior of matter. 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. Chemistry also addresses the nature of chemical bonds in chemical compounds.- Arsenic is a chemical element with the symbol As and atomic number 33. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. Arsenic is a metalloid. It has various allotropes, but only the grey form, which has a metallic appearance, is important to industry.
- Drama (film and television) (Wikipedia)
In film and television, drama is a category or genre of narrative fiction (or semi-fiction) intended to be more serious than humorous in tone. The drama of this kind is usually qualified with additional terms that specify its particular super-genre, macro-genre, or micro-genre, such as soap opera, police crime drama, political drama, legal drama, historical drama, domestic drama, teen drama, and comedy-drama (dramedy). These terms tend to indicate a particular setting or subject matter, or they combine a drama’s otherwise serious tone with elements that encourage a broader range of moods. To these ends, a primary element in a drama is the occurrence of conflict—emotional, social, or otherwise—and its resolution in the course of the storyline.