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Lesson Plan


Make meringues. While they are baking find out which molecules in them make the foam, and do other foam activities.
Science content (2016 curriculum): 
Chemistry: Physical Changes, Solutions, Mixtures and Separating (2, 4, 5, 6)
Curriculum connection (2005 science topic): 
Physical Science: Materials and Structures (grade 3)
Physical Science: Chemistry (grade 7)

A foam is a mixture called a colloid. It is made up of gas bubble suspended in a liquid (or solid).
This lesson makes some foams.

Make meringues.
While baking figure out which molecules in the ingredients made the foam with the foam molecule test (proteins).

Then make other foams and discuss the molecules that make the foam: elephant's toothpaste, then coke and mentos.

Grades tested: 
Gr 4
Site tested: 
ingridscience afterschool
Lesson plan originally developed and delivered: 

ingridscience afterschool