Here is her experiment.
E. began by filling her test tube with water.
She then placed her hand over the opening of the test tube...
and turned it upside down.
She removed her hand. Much to everyone's surprise, the water did not fall out of the test tube!
When E. pierced the surface of the water in the upside down test tube with the skewer, the water spilled out.
Why did this happen? The weight of the water was less than the air pressure inside the test tube creating a vacuum. This enables the water to remain in the tube even when inverted. Her classmates were suitably impressed!
Presentations like E.'s are not isolated incidents in authentic Montessori classrooms. It is always such a treat to witness the enthusiasm of the presenter and the rapt attention of her fellow classmates. One of the beautiful aspects of the Montessori classroom is that people of all ages are learning and working together. Everyone is a respected member of the group. Children feel safe and secure in this environment and enjoy sharing their knowledge with one another. E.'s smile in the last picture shows us that when the children are given the opportunity to share their knowledge with others, a sense of joy ensues.