Marking guidelines are developed with the exam paper and are used by markers to guide their marking of a student's response. The table shows the criteria with each mark or mark range. Sample answers ...

Our Knowledge Broker Academy programme takes an applied learning approach to building academic-policy engagement at UCL. By supporting skills development in facilitated peer-to-peer sessions, the ...

In an equilibrium system, the reaction does not go to completion. At equilibrium there will be both reactants and products present in the reaction vessel. Industrial chemists use Le Chatelier’s ...

You feel forces every day, the seat pushing up on you, your fingers pressing phone buttons, even gravity pulling you down. But have you ever wondered what happens when forces balance each other ...

Many companies deposit paychecks directly into employee accounts on a biweekly basis. For full-time employees, companies calculate these biweekly amounts on the employees' annual salaries. For ...

Both molarity and molality are measures of a chemical solution’s concentration. The primary difference between the two comes down to mass versus volume. The molality describes the moles of a solute in ...

Everyday Health independently vets all recommended products. If you purchase a featured product, we may be compensated. Learn why you can trust us. Everyday Health’s weight loss calculator, developed ...

Health professionals have been using body mass index (BMI) to help decide whether people are overweight or underweight for over 100 years. However, BMI has several flaws. BMI is derived from a simple ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Doretha Clemons, Ph.D., MBA, PMP, has been a corporate IT executive and professor for 34 ...