Pure substances, which are one type of matter, can either be elements or compounds. Like real gold and Fool’s gold. But what if my sample has several different types of elements and compounds all ...

Scientists can estimate people's biological age, but whether they use oral tissue or blood to make the measurement matters ... The correct type of tissue is needed to estimate biological age ...

There is one core practical activity in the 'States of matter and mixtures' section ... by a Bitesize consultant as a suggestion to the type of question that may appear in an exam paper.