Nitrogen dioxide gas is used to demonstrate Le Chatelier’s principle of equilibrium.
3D printing is a relatively new technology and industry and is also one of the latest technologies to enter schools.
There are a wide range of chemicals used in solution form for various experimental activities and demonstrations in the school science curriculum.
Investigating the effect of cell size on diffusion (absorption) rate (speed) is a common investigation carried out by secondary students.
Food testing is routinely carried out in senior biology classes. Students test a variety of food samples for carbohydrates, such as sugar and starch, lipids, proteins and vitamin C.