Primary 7 have been conducting several science investigations in terms 2 and 3.
We have learned about Nucleation! This is a brilliant reaction that happens when you mix Mentos with fizzy drinks. The process involves the Co2 gas escaping very rapidly through ‘nucleation sites’. These sites are actually little tiny bumps on the surface of a Mento. We had lots of fun investigating how different conditions effect how big the fizzy fountain becomes. This fizzy fountain is called a geyser. We learned how to conduct a fair test and learned what different variables are.