This demonstration reviews the concept of density. It examines why certain objects float or sink in water and highlights some interesting information about cola versus diet cola soft drinks.
A circular disc is made with two or more colours of the visible spectrum in equal area sectors. The disc is spun and a different colour appears. read more
Categories: Teacher Demonstration
This demo demonstrates the greenhouse effect by comparing the air temperature of a room with the air temperature inside a clear plastic bag containing black construction paper. The bag models the... read more