Activity Five: Molecular Models — A student worksheet explaining how to create molecular models using simple materials, with examples of a water molecule and guidance on using different-sized balls and sticks to represent atoms and bonds.

Student worksheet titled "Activity Five: Molecular Models" featuring two diagrams of molecular models, one showing a water molecule with small hydrogen atoms and a large oxygen atom connected by bonds, and the other showing a single large sphere representing an atom. Text explains the use of stick and ball models to represent molecules, with suggestions for materials like toothpicks, marshmallows, and foam balls.