Measuring Lung Capacity With A Balloon. Can you think of other ways to measure your lung capacity? Find your average balloon diameter on the X-axis and extrapolate the Lung Volume on the Y-axis. MATERIALS: One circular balloon per student String Ruler PROCEDURE: 1) Take 1 BIG breath. This activitiy will help students to gain a better understanding of their lungs and how they work. 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. What Several different lung volume measurements can be made. then exhale normally into the balloon. Circumference #1 (cm) Circumference #2 (cm) Circumference #3 (cm) AVERAGE Take a deep breath and blow all … In this lab, you will measure three indices of lung capacity using a balloon. How big you can blow up a balloon to be has to do with something called your 'vital lung capacity.' Exercise 4: Measuring Lung Volumes and Capacities. 3. 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. Make sure to only exhale once into the balloon. Don't use plagiarized sources. Take a deep breath and then exhale into the balloon. How much air can you hold in your lungs? 8. Or maybe just the exercise of blowing into the balloon would be good breathing therapy (that is, measuring is not really necessary). One way is by using a complex piece of laboratory equipment called a spirometer. Measuring Vital Capacity -- Stretch a round balloon several times to stretch it out. 5) Record this measurement in your data table. <> In general, the following procedure will get you started. Measuring lung capacity might be … 1. A less accurate (but very sanitary) method to measure lung capacity is by using a balloon. Do you think an athlete could hold more or less? This information will be recorded under the "Vital Capacity diameter" column. 2) Exhale into the balloon. lung capacity. How to Measure Lung Capacity. Repeat this so that you have 3 total measurements and can take the average and record in the data table. The purpose of this activity is to measue the vital capacity and tidal volume of our own lungs using a balloon. Measuring Tidal Volume. Get Essay Then I situated the bucket in the center of the tray. This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Record in Table 3. %���� Materials  -- Balloons, metric ruler, meter stick (or rulers or tape measures), Prediction:   Which factor(s) have the most affect a person’s vital capacity? Do not force your breathing. Place the balloon in your mouth, inhale normally and then exhale normally into the balloon. Human lung size is determined by genetics, gender, and height. Then, ask your partner to measure the diameter of the balloon using a cm ruler. Pinch the end of the balloon and measure its diameter. endobj Follow this number up to the heavy line, then move across to locate the corresponding volume.  Convert the diameter to volume using the graph and record this on your table. When you take a deep breath, blow into the balloon and hold you transfer all the air in stored your lungs into the balloon. <>>> Measuring Vital Capacity -- Stretch a round balloon several times to stretch it out. Materials: Balloons. 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. Balloons, metric ruler, meter stick, bathroom scale (optional) 1. Take a deep breath in. Record this measurement in Data Table t. 4. How to Measure Tidal Volume with a balloon: First, stretch a party sized round balloon several times to stretch it out. 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. 1. Explain that they will be measuring their lung capacity (amount something can hold) using balloons. 2. 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? Stretch your balloon. Repeat this so that you have 3 measurements. Metric ruler. SOURCES: Mayo Clinic: “Spirometry,” “Peak flow meter.” Cleveland Clinic: “Peak flow meter.” American Lung Association: “Measuring your peak flow rate.” The formula is: V= 4/3 π r 3. 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). 5) Repeat this 2 more times so you can find your average lung capacity. After that they will begin the balloon experiment to measure their own lung capacity. Your answer will be in cubic centimeters … Students will then create a hypothesis about lung capactiy and height. They will measure the circumference … (If they are having trouble, hold up a balloon and let them make the connection.) 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. 4 0 obj Human lung capacity can be measure in several ways. �H ��̉���a.g����=�I �v���,��*m���ϳW�|��L(b��1�ĝuof�*MX'�e �1�rg� Qm��7�b"s�9'ܤ����9��CO�{5D��>������sFg;@�8u� ��z���d[�s5�UO&�d� ���Wr��#�V,����x�;M1�����jT&���0$%ZwÕ6���6������U;�Qwx��7VO��!,��k��GkW*9�r(��1w^���t��pG9�z��6gr����D��*_ÿCQ�X�r�� ��́�myy���l�G�(�)� zU�:�O���∻���b�@�q��Ь����a������&Y"���,ʤ!�����9��d�>��Ë㷁HQ��.��@PEt �[�މy�!yj!5#*ɍ)�m�R���;-�Q�����x7��u����6}�II"�1uL�Zelkv\��q�N���2����H�>�9H�c}�w�-(�����J�X�4��ZwT�MZU�6�Z. MEASURING LUNG CAPACITY. Name: ____________________________________, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. 2. At maximal capacity, an average lung can hold almost six liters of air, but lungs do not usually operate at maximal capacity. Do not force your breathing. Introduction: Spirometer is an instrument used to measure the lung capacity. Blow up the balloon several times to stretch it before beginning to take measurements. Measuring Tidal Volume -- Stretch a round balloon several times to stretch it out. Explain your reasoning. Pinch the end of the balloon and measure its diameter. exhale normally into the balloon. 2. Inhale normally and then exhale normally into the balloon. Inhale normally and then exhale normally into the balloon. Now breathe out. What about your grandmother versus a child? 3. Stretch your balloon. 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. 2. (Solve the formula for r.) radius = _______________ *Calculate the VOLUME of the balloon (a sphere). Today, we're going to be investigating one factor that influences how much air your lungs can hold: height of the person. Consider the difference between internal respiration and external respiration and explain why lung capacity may not have a great effect on length of time you can hold your breath. USING A BALLOON TO MEASURE VITAL CAPACITY PURPOSE: To measure your vital capacity using a balloon. Pinch the end of the balloon and measure its diameter. Before beginning the experiment, the students will see how the lung works by using a soda bottle as well as a demonstration of the diaphragm. e) Convert the balloon diameters into a measurement of lung capacity by using figure 2. 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. VITAL CAPACITY. Tidal Volume- The amount of air that you move in and out of your lungs while breathing normally (at rest) Vital Capacity- It is possible to inhale and exhale more forcefully - the maximum amount of air moved in and out of the lungs. Therefore, the volume of air in the balloon is a representative of the maximum amount of air your lungs can hold up. Lay the balloon on top of a ruler and measure the diameter of the balloon in mm. Do you think the person with the greatest vital capacity can hold their breath longer than those with a lower vital capacity? .this is the circumference (use cm). Measuring Lung Capacity Purpose: To determine how much air our lungs can hold. 4. 1 0 obj In this activity, you will be measuring stream Blow up the balloon several times to stretch it thoroughly. 3 0 obj Shape the balloon into a sphere shape while holding the air in. Repeat this so that you have 3 total measurements and can take the average and record in the data table. Get Your Custom Essay on Lung Capacity Lab Just from $13,9/Page. endobj Deflate the balloon and repeat steps 1 and 2 two more times. measure the distance around the balloon . Pinch the end of the balloon and measure its diameter in cm.  Record on data table. <> Stretch a round balloon several times to stretch it out. One mL = one cm3. Be careful with the measurements to be sure you do not flatten the balloon. INTRODUCTION: A spirometer is the instrument used in the health profession to accurately measure lung capacity. 4. However, lung capacity can also be measured by using a balloon. 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