They're created during a chemical reaction where atoms are rearranged into new compound molecules. For example ... We’re making honeycomb, which the kids absolutely love and we do this in ...

The film explains the concept of chemical changes, where two or more materials combine to form entirely different substances. It highlights everyday examples of chemical changes, such as burning wood ...

In a chemical reaction, new materials are always formed. Sometimes these new materials are useful to us. Irreversible changes are permanent. They cannot be undone. For example, you cannot change a ...