Experiments in 5th class

This month we have been learning all about the amazing human body and we completed two experiments based on our learning. The first was to compare our heart rates when we were at rest and after exercise. We found that our heart rates were much higher after we exercised because our working muscles needed more oxygen during this time. We also designed our own models of the human lungs, to help us understand how they work, using a plastic bottle, a straw, and two balloons. When you breathe in a muscle under your chest called your diaphragm moves down and your ribs move out. Our model worked in a similar way. When you pull down on the rubber, the space inside the bottle gets bigger and the air spreads out.

We have started reading a new novel this month, “A Greyhound of a girl”-By Roddy Doyle. We are really enjoying the story so far and decided to design characters from the story using a variety of fabrics and fibres and anything else we could find.

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