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GCSE Bitesize was launched in January 1998, covering seven subjects. For each subject, a one- or two-hour long TV programme would be broadcast overnight in the BBC Learning Zone block, and supporting material was available in books and on the BBC website. At the time, only around 9% of UK households had access to the internet at home. [3]
Triple Award Science, commonly referred to as Triple Science, results in three separate GCSEs in Biology, Chemistry and Physics and provide the broadest coverage of the main three science subjects. The qualifications are offered by the five main awarding bodies in England; AQA , Edexcel , OCR , CIE and Eduqas .
This framework came in 1975. [8] It emphasized that a curriculum based on the principles laid out in the framework has to be developed on the basis of research. Thus for NCERT, the 1970s was a decade flushed with curriculum research and development activities to narrate the content and process of education to Indian realities.
In those with the common cold, the color of the sputum or nasal secretion may vary from clear to yellow to green and does not indicate the class of agent causing the infection. [312] The color of the sputum is determined by immune cells fighting an infection in the nasal area. [313]
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.
Description: Comprehensive textbook written by topic creator. Importance: Most-popular textbook on subject (according to Amazon.com). Lehn coined the term "supermolecule" in '73, developed the concept of supramolecular chemistry in '78, and won the Nobel Prize for his supramolecular chemistry work in ’87.
The bonding in carbon dioxide (CO 2): all atoms are surrounded by 8 electrons, fulfilling the octet rule.. The octet rule is a chemical rule of thumb that reflects the theory that main-group elements tend to bond in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas.
[8]: 66 (In a strict scientific sense, a mite is not an ant, although "mite" in common speech can refer to any small creature.) Stalactites hang tight, hang down like tights on a line; stalagmites might bite (if you sit on them), might reach the roof. [8]: 66 Tights hang from the Ceiling, and Mites crawl around on the Ground