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Low power consumption of semiconductors introduce UV disinfection systems that utilized small solar cells in remote or Third World applications. [ 114 ] UV-C LEDs don't necessarily last longer than traditional germicidal lamps in terms of hours used, instead having more-variable engineering characteristics and better tolerance for short-term ...
OpenSciEd is an American nonprofit organization that creates open source science education materials and curricula for all grades, initially focusing on grades 6-8. [1] OpenSciEd's approach is based on a science storyline, where students build upon their understanding of a topic by asking questions and investigating their answers through ...
The action spectrum shows that UVA does not cause immediate reaction, but rather UV begins to cause photokeratitis and skin redness (with lighter skinned individuals being more sensitive) at wavelengths starting near the beginning of the UVB band at 315 nm, and rapidly increasing to 300 nm. The skin and eyes are most sensitive to damage by UV ...
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Science education is the teaching and learning of science to school children, college students, or adults within the general public. The field of science education includes work in science content, science process (the scientific method), some social science, and some teaching pedagogy.
The National Science Bowl (NSB) is a high school and middle school science knowledge competition, using a quiz bowl format, held in the United States. A buzzer system similar to those seen on popular television game shows is used to signal an answer.
Teachers and science advocates are voicing skepticism about a Maine proposal to update standards to incorporate teaching about genocide, eugenics and the Holocaust into middle school science ...
Abeka Book, LLC, known as A Beka Book until 2017, is an American publisher affiliated with Pensacola Christian College (PCC) that produces K-12 curriculum materials that are used by Christian schools and homeschooling families around the world.