This activity illustrates the effect of intermolecular forces on surface tension of a liquid. Students attempt to place drops of various types of liquids on the face of a penny (or any available coin). The substances with stronger intermolecular forces have greater surface tensions and hence it is possible to place more drops on the face of the penny.
Categories: Lab/Student Activity
Author: Kimberly Reid, Don Galbraith Award winner, Nipissing University In this activity, grade 6 students will explore physical adaptations/ adaptive traits by looking at bird beaks. Students... read more
by Laura Wodlinger, Director of Secondary Resource Development, STAO Many people consider science to be a collection of verified true facts, separate from human issues like discrimination. While... read more