so melting points can be used to find out if a substance is pure or impure. Impure substances tend to have a slightly lower melting point than the pure substance, and a broader melting temperature ...

For example, shops sell cartons labelled as 'pure' orange juice. The label means that the contents are just orange juice, with no other substances added. However, the juice is not pure in the ...

The powdered version is more similar to a clove of garlic than you may have thought, which also means that garlic powder is ...