Is glass really made from sand?

In James May’s series ‘ James May Q&A (BBC Head Squeeze).  He poses the question “Is glass really made from sand?  Year 9 have been exploring this question in their topic on materials.  The answer turns out to be, yes – mainly, plus one or two other chemicals to help the process along.  Although, we didn’t use the exact same procedure, we were still proud of the samples of glass we produced.