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Direct linkWonhyeuk Jung; Christopher S. Dunham; Katie A. Perrotta; Yu Chen; James K. Gimzewski; Joseph A. Loo – Journal of Chemical Education, 2022
Food safety science is an important field due to its practical applications in maintaining public safety and confidence in consumer goods. A significant component of food safety science is the detection and regulation of heavy metals in food. Heavy metals such as mercury (Hg) are of particular concern because of their potential to damage the…
Descriptors: Chemistry, Science Instruction, Food Standards, Safety
Frontali, Clara – Physics Education, 2014
Difficulties encountered by teachers in giving a definition of the term "energy", and by students in grasping its actual meaning, reflect the lengthy process through which the concept eventually came to maturity around 1850. Tracing the history of this process illuminates the different aspects covered by the term and shows the important…
Descriptors: Energy, Physics, Science Instruction, Definitions
