Go to this site: http://biol.co/vitcap1   and input information on test subjects.  It will calculate the vital capacity. Take a deep breath and blow all at once into the balloon and close it off. Lay the balloon on top of a ruler and measure the diameter of the balloon in mm. Stretch your balloon. Get Essay Then I situated the bucket in the center of the tray. 2. endobj Measuring Lung Capacity Purpose: To determine how much air our lungs can hold. Do not force your breathing. What about your grandmother versus a child? Pinch the end of the balloon and measure its diameter. Measuring Vital Capacity - Repeat the procedure, only this time inhale as much air as you can and exhale forcefully. 4. Materials: Make a list of the materials we will use today. This amount of air provides enough oxygen for a person who is resting. Pinch the end of the balloon and measure its diameter. Explain your reasoning. This is basically how much air your lungs can push out in one breath. Metric ruler. Can you think of other ways to measure your lung capacity? 1. %���� Measuring Lung Capacity Annotation: This lesson will provide students with a concrete way to determine their individual lung capacity using both a measured balloon activity as well as a formula that relates body surface area to To show the size of one person's lung capacity in comparison with another's you will be measuring how big around the balloon … 4. Lung capacity provides information about the general health of the lungs. 2. In this activity, you will be measuring 5) Repeat this 2 more times so you can find your average lung capacity. How to Measure Tidal Volume with a balloon: First, stretch a party sized round balloon several times to stretch it out. Measuring Vital Capacity -- Stretch a round balloon several times to stretch it out. Follow this number up to the heavy line, then move across to locate the corresponding volume. 5) Record this measurement in your data table. The amount of air that you move in and out of your lungs while breathing normally is called TIDAL VOLUME. USING A BALLOON TO MEASURE VITAL CAPACITY PURPOSE: To measure your vital capacity using a balloon. In this activity, you will be measuring the vital capacity of members of the class.   If you have any breathing difficulties (asthma or other condition), you should not participate.  You will be using the diameter of a balloon and the graph shown to estimate your capacities. 1.  What is the difference between tidal volume and vital capacity?     Suggest a way you could measure a person’s tidal volume. Several different lung volume measurements can be made. Stretch your balloon. Rank in order from MOST effect (1)  to least effect (5), The weight of the person The height of the person, The sex of the person The age of the person Activity level. Do not force your breathing. MEASURING LUNG CAPACITY. In this lab, you will measure three indices of lung capacity using a balloon. Whether you have an existing respiratory condition, or have noticed difficulty or changes in your breathing, it is a good idea to take some tests to measure your lung capacity. Get Your Custom Essay on Lung Capacity Lab Just from $13,9/Page. You will need a balloon (the kind that blows up into a regular balloon shape, not the oblong sort), a measuring tape or ruler, and something to record data with and on. One way is by using a complex piece of laboratory equipment called a spirometer.  Convert the diameter to volume using the graph and record this on your table. This activitiy will help students to gain a better understanding of their lungs and how they work. 2. Use your three measurements to calculate an average vital capacity. Human lung size is determined by genetics, gender, and height. 2) Exhale into the balloon. Shape the balloon into a sphere shape while holding the air in. To convert from balloon diameter to volume, locate the balloon diameter on the horizontal axis of the graph on the next page. How big you can blow up a balloon to be has to do with something called your 'vital lung capacity.' A less accurate (but very sanitary) method to measure lung capacity is by using a balloon. The purpose of the investigation is to determine our own lung capacity and then depending on your student’s hypothesis do some additional testing and measure lung capacity again. endobj For example, if your balloon diameter is 14.5 cm, then the corresponding lung volume is 1500 cm3. This measured and calculated number can after be compared with a number derived from an equation that measures your personal vital capacity. 1. It is possible to inhale and exhale more forcefully - the maximum amount of air moved in and out of the lungs is called the VITAL CAPACITY, which is the amount of air a person can expel from the lungs at maximum inhalation. Place the balloon in your mouth, inhale normally and then exhale normally into the balloon. Measuring Lung Capacity Lab. 2 0 obj Do you think an athlete could hold more or less? Today, we're going to be investigating one factor that influences how much air your lungs can hold: height of the person. Repeat this so that you have 3 total measurements and can take the average and record in the data table. Human lung capacity can be measure in several ways. Record this measurement in Data Table t. 4. SOURCES: Mayo Clinic: “Spirometry,” “Peak flow meter.” Cleveland Clinic: “Peak flow meter.” American Lung Association: “Measuring your peak flow rate.” 2. If you don't actually have someone of the right age to do the experiment with, you can /estimate/ their vital lung capacity with this equation: V = 0.041*h - 0.018*a - 2.69 What CAPACITY. Find your average balloon diameter on the X-axis and extrapolate the Lung Volume on the Y-axis. 5. Research has shown that the capacity of a person's lungs is proportional to the surface area of his body and his height.   This online calculator will use your height and age to estimate your vital capacity.  Have each of your subjects record their data. Your answer will be in cubic centimeters … 4) Have your partner measure the circumference of the balloon (in cm) using the method your teacher showed you. The amount of air taken in or expelled during normal breathing is about 500 cm 3. The purpose of this activity is to measue the vital capacity and tidal volume of our own lungs using a balloon. Procedure A: VITAL CAPACITY 1. In the other lab, measuring lung capacity, to measure one’s tidal volume, a person is to stretch a round balloon and then inhale and exhale normally into the balloon. 3.  What variables of your test subjects were necessary to input into the calculator?    Which variables seem to have the LEAST effect on a person’s vital capacity? Compare your subjects’ vital capacity and variables listed (height, weight, sex..etc).   Based on your limited data, which factors had the GREATEST impact on tidal volume. lung capacity. How to Measure Lung Capacity. Use a 5 litre bottle snugly fitted with a cap through which two pipes are inserted, (one inlet - to blow air into the container; and one outlet - to collect the water drawn out from the bottle). 2. x��Z�n�F}7��ԛ��'mS @��CP�EGDe��m��3{!wy�5ADR��9s���J��cv}���������޼����]^���e�,��e,�$/2m�p��~��h�uwy���˟./>_S*� ˯)c�nXG�o�������r����8���k���7dw�\^���0�/��8tGŘ�a�❋&Dy�#��}�|�!��4�p��Q�e�޼vv�yN���m�E���q>����0�D=������2�r�i8y 3. How might an athlete's vital capacity compare to a non-athlete? 1 0 obj When you inhale and exhale more forcefully that is the maximum amount of air that you can move in and out of the lungs, which is called Vital Capacity. The air in the lungs is measured in terms of volumes and capacities. 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