Now that we are finished with our Cell Unit Study we are moving onto the rest of the human body following The Way We Work by David Macaulay.
Trees and plants take in carbon dioxide and give off oxygen. Humans breath in oxygen and exhale carbon dioxide. While inside the body red blood cells exchange oxygen molecules for carbon dioxide molecules as they travel through the veins and arteries. This continuous cycle supplies us with the oxygen required for life.
The green funnel is the human head, and the red piece is the heart. The black and yellow square is the lungs. The blue tracks which aren't part of the loop are arms and legs. The black track is meant to represent the veins and arteries inside the human body. It travels around the body and also passes through the lungs where the oxygen and carbon dioxide enter and leave the body. The red cylinders on the track are the red blood cells that deliver the oxygen and pick up the carbon dioxide.
The assignment was simple "use the tracks to create a model of the carbon dioxide - oxygen cycle". I think they liked it because they used creativity and engineering to come up with their own design. I liked it because it was simple and they understood the concept.
We have many more human body science activities coming up. There are three ways to receive notification of new posts; Like us on Facebook, sign up to Follow by Email, Join the blog. There are buttons for all three on the right-hand side.
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