Why is Mercury Used in Gold Mining? Mercury is a silvery metal that is liquid at room temperature. It is used in to extract gold from rocks. A puddle of mercury is poured onto a pile of crushed rock. The mercury and the rock are then mixed. Any
Why is Mercury Used in Gold Mining? Mercury is a silvery metal that is liquid at room temperature. It is used in to extract gold from rocks. A puddle of mercury is poured onto a pile of crushed rock. The mercury and the rock are then mixed. Any
You might have heard that taking antibiotics can protect against or cure infection. This is not true. are drugs that are used to treat bacterial infections by killing bacteria. Covid-19 is not caused by bacteria. It is caused by coronavirus, which is a type of virus. We do not yet
Information accurate as of 17th May 2020. Claims of treating the new coronavirus using steam therapy with the additions of various plants such as neem have been circulating on social media. There is no cure or vaccine for the new coronavirus yet. We can only take preventative measures to reduce
WHY DO WE SLEEP? The average human spends a third of their life asleep. Sleep is an important process for survival, learning, and memory. While we sleep, the day’s events are processed in the brain, and energy is restored. It may seem like we are doing nothing, but sleeping
There is widespread acceptance that climate change is happening. It is now however, more common for people to suffer from anxiety and depression related to the effects of global warming on their lives. For example, 9 in 10 people in , a country where warming impacts are very noticeable, are
Keeping good food hygiene means preparing and storing food safely, so that it will not cause disease. We do not always realise its importance, but there are simple things we can do to make sure our food is safe. WHY IS FOOD HYGIENE IMPORTANT? More than 200 different diseases can
Many people in Africa cannot access the healthcare they need. This might be because it is too expensive, or because a hospital is too far away. Most people in rural areas rely on local clinics, which often do not have all the resources they need. This means that diagnosing illnesses
The human brain is a very important organ. It controls every aspect of the human body, including behaviour, decisions, and emotions. Despite its importance, it is not very well understood. Scientists know that the brain contains cells called neurons. These neurons work together, and are connected in many ways. Scientists
Skin toning, skin lightening and skin brightening, are all euphemisms for skin bleaching
WHY DO WE TOUCH OUR FACES? It is a natural human habit to touch our faces. We may do it to scratch an itchy nose, wipe our mouth or rub tired eyes, but a lot of the time we do it without even thinking about it. Some studies have shown