Autumn Term Newsletter Issue 7

Year 6 Biology

Year 6 have been exploring how the lungs work by constructing a lung model using these common household items: an empty 2 -litre bottle to represent the body, a plastic bag to represent the diaphragm, a balloon to represent the lungs and a drinking straw to represent the trachea. We were able to show how the diaphragm expands and contracts to cause your lungs to fill with air and then empty out again. The movement of the balloon matches your breathing – when you breathe in, your lungs fill with air. That’s because the diaphragm expands making room for air to get in through the straw (which represents your airway, or trachea). When you breathe out, your diaphragm contracts, pushing the air out of your lungs. The model worked in the same way: when we pulled down on the plastic, the balloon inflated slightly, and when we pushed up, the balloon deflated

For the full newsletter download: .Issue 7 Autumn Term