Category: News

Is gypsum toxic to humans?

Gypsum is a mineral calcium sulphate dihydrate with the chemical formula CaSO4ยท2H2O a non-hazardous, non-toxic, inherently safe material. Is gypsum safe f...

What is good learning?

The most fundamental requirement of good learning is to get the content right. This means having a very clear understanding of the capabilities we need to...

At what age all 32 teeth comes?

People can expect that between the ages of 12 and 14 a child will have lost all of their baby teeth and these will have now been replaced by a full set of...