So, the teachers see the kids eating lunch in their classrooms every day and spilling their drinks and getting food on their desks and the first thought is let's give them acid. I think we're lacking ...

A number of characteristic observations can be made for these reactions. In these experiments you will measure temperature increase and test hydrogen and carbon dioxide gases produced in acid ...

I think we're lacking a bit of information. Three milliliters of hydrochloric acid seems too little to cause a major problem. The headline says "strong acid", but do they mean the concentrated stuff ...