The human respiratory system is made up of the lungs and the passages that lead to them. Air is breathed into the lungs, and oxygen from the air passes into the blood, which carries it around the body. The waste product, carbon dioxide, is then passed from the blood into the lungs and is breathed out. This all happens with the immense help of oxygen, to maintain a functional human body. However, this process isn’t always constant, there are a bunch of actors that interfere with the speed in which humans respire or ventilate and they are; age, gender, physical activity, weight and surroundings. This investigation will be focusing on how physical activity (5, 10, 15, 20, and 25 squats) affect respiration rate in 14 year-old, Year 9 boys.
Research Question: How does the variations of 5, 10, 15, 20, and 25 squats performed by 14 year-old Year 9 boy’s affect their respiration rate within 1 minute?
Prediction and Hypothesis:
If the number of squats is increased, then the number of breaths per minute will increase as more physical exercise tires …show more content…
Looking back at the experiment, it is believed to be accurate, as everything went according to plan. In terms of the reliability of the results, they are accurate as they match up to the scientific research and have reasonable and truthful as well as fair results; the evidence is also clear in the graph as it matches up to the scientific research showcased in the conclusion part of the lab report. The age groups were the same; Year 9, 14 year-old boys making the results fair and more reliable due to the similarity between the specimens in terms of age group and class. The data points are all near the best-fit line and are easy to follow as they ascend and the data-point legend is easy to spot in the origin at which the points lie