[The respiratory system model]
Since this boy has been very interested to learn about the body systems, especially on respiratory and circulatory system, I made him a lung model today.
Materials used to make the lung model :
1️⃣ Straws - I used two straws to connect them and it works.
2️⃣ Zip lock bag that act as the lungs
While he was playing with his lung model, I shared with him that the lung is part of the respiratory system. We take in oxygen and oxygen will pass through the trachea and into our lungs.
He spent about 45 minutes blowing air (oxygen) into the zip locked bag. This idea is really awesome to show that lungs expanded when we inhale air and contracted when we exhale air.
And this idea is inspired from @hellowonderful_co - 31 minutes ago