Human lung capacity – how much air can fit in your lungs – can be measured in several ways. One way is by using a piece of laboratory equipment called a spirometer. Lung capacity can also be measured using a balloon. The data you obtain may not be as accurate as that obtained using a spirometer.
Several different lung volume measurements can be made:
Before the Activity
With the Students
See Project Rubric.
Define the Problem: If you were a doctor trying to measure a patient’s respiratory fitness, what methods could you use to find this out? With your groups, design a way to measure lung capacity (a measure of respiratory fitness).
Activity Embedded Assessment
Research & Investigation: Have students record their hypotheses, methods, observations, and conclusions for the investigation.
Designing a way to measure Lung Capacity: Using the results of their experiment, students should:
This material was adapted from a lab from http://science-class.net.
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