Students investigated hydrophobic/hydrophilic quantities of magic sand and normal sand by comparing how they differ when added to water. They also investigated the properties of shape memory alloy (Nitinol) which has the capability to sense changes in its environment and respond to the changes in a preprogramed way. Students observed the difference between sand and activated charcoal in removing a coloured dye from water and finally producing gold nanoparticles using gold hydrogen tetrachloride solution.
Mr Ampem-Lassen
Science Teacher