# measuring lung capacity with a balloon

2. VITAL CAPACITY. The air in the lungs is measured in terms of volumes and capacities. 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. One way is by using a complex piece of laboratory equipment called a spirometer. Repeat this so that you have 3 measurements. Go to this site: http://biol.co/vitcap1Â Â and input information on test subjects.Â It will calculate the vital capacity. 1 0 obj Measuring Vital Capacity -- Stretch a round balloon several times to stretch it out. (If they are having trouble, hold up a balloon and let them make the connection.) They will measure the circumference … Materials: Balloons. Use Figure 2 to convert the balloon diameters in Data Table 1 into lung volumes. Take a deep breath and blow all … 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. e) Convert the balloon diameters into a measurement of lung capacity by using figure 2. Measuring Tidal Volume -- Stretch a round balloon several times to stretch it out. Blow up the balloon several times to stretch it before beginning to take measurements. Circumference #1 (cm) Circumference #2 (cm) Circumference #3 (cm) AVERAGE <>/ExtGState<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> 3. 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. 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). Human lung size is determined by genetics, gender, and height. MATERIALS AND METHODS: Vital capacity is measured in liters (l), milliliters (mL) and cubic centimeters (cm3). To convert from balloon diameter to volume, locate the balloon diameter on the horizontal axis of the graph on the next page. How do doctors measure your lung capacity? endobj In this activity, you will be measuring the vital capacity of members of the class.Â Â If you have any breathing difficulties (asthma or other condition), you should not participate.Â You will be using the diameter of a balloon and the graph shown to estimate your capacities. Take a deep breath and blow all at once into the balloon and close it off. lung capacity. Pinch the end of the balloon and measure its diameter in cm.Â Record on data table. Don't use plagiarized sources. Explain that they will be measuring their lung capacity (amount something can hold) using balloons. In general, the following procedure will get you started. CAPACITY. 4) Have your partner measure the circumference of the balloon (in cm) using the method your teacher showed you. A less accurate (but very sanitary) method to measure lung capacity is by using a balloon. Do not force your breathing. 5. They will learn about lung capacity and be able to measure their own lung capacity. When you take a deep breath, blow into the balloon and hold you transfer all the air in stored your lungs into the balloon. 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 Take a deep breath and then exhale into the balloon. Get Essay Then I situated the bucket in the center of the tray. 4. To show the size of one person's lung capacity in comparison with another's you will be measuring how big around the balloon … Estimated Vital CapacityÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â. In this activity, you will be measuring Then, ask your partner to measure the diameter of the balloon using a cm ruler. 1. How to Measure Tidal Volume with a balloon: First, stretch a party sized round balloon several times to stretch it out. However, lung capacity can also be measured by using a balloon. 2. Shape the balloon into a sphere shape while holding the air in. Stretch a round balloon several times to stretch it out. How might an athlete's vital capacity compare to a non-athlete? 2. exhale normally into the balloon. Balloons, metric ruler, meter stick, bathroom scale (optional) 1. How big you can blow up a balloon to be has to do with something called your 'vital lung capacity.' Do not force your breathing. stream 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 INTRODUCTION: A spirometer is the instrument used in the health profession to accurately measure lung capacity. Record the measurements on the data table. measure the distance around the balloon . Â Convert the diameter to volume using the graph and record this on your table. Do you think an athlete could hold more or less? %PDF-1.5 Pinch the end of the balloon and measure its diameter. Take a deep breath in. Find your average balloon diameter on the X-axis and extrapolate the Lung Volume on the Y-axis. 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. 1.Â What is the difference between tidal volume and vital capacity?Â Â Â Â Suggest a way you could measure a person’s tidal volume. Exercise 4: Measuring Lung Volumes and Capacities. 5) Record this measurement in your data table. 2. Lay the balloon on top of a ruler and measure the diameter of the balloon in mm. Use your three measurements to calculate an average vital capacity. SOURCES: Mayo Clinic: “Spirometry,” “Peak flow meter.” Cleveland Clinic: “Peak flow meter.” American Lung Association: “Measuring your peak flow rate.” 1. . After that they will begin the balloon experiment to measure their own lung capacity. Choose 3 subjects from your group and record data on their height, age, sex, and activity level.Â Â. 3 0 obj 5) Repeat this 2 more times so you can find your average lung capacity. Background. Measuring lung capacity might be … This activitiy will help students to gain a better understanding of their lungs and how they work. 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. MATERIALS: One circular balloon per student String Ruler PROCEDURE: 1) Take 1 BIG breath. 4. Procedure: 1. MEASURING LUNG CAPACITY. In this lab, you will measure three indices of lung capacity using a balloon. Record in Table 3. Do you think the person with the greatest vital capacity can hold their breath longer than those with a lower 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. 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 Measuring Vital Capacity - Repeat the procedure, only this time inhale as much air as you can and exhale forcefully. <> One way is by using a piece of laboratory equipment called a respirometer or spirometer. Repeat this so that you have 3 total measurements and can take the average and record in the data table. Stretch your balloon. Measuring Vital Capacity -- Stretch a round balloon several times to stretch it out. Pinch the end of the balloon and measure its diameter. How much air can you hold in your lungs? Repeat this so that you have 3 total measurements and can take the average and record in the data table. Name: ____________________________________, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Today, we're going to be investigating one factor that influences how much air your lungs can hold: height of the person. .this is the circumference (use cm). This amount of air provides enough oxygen for a person who is resting. Explain your reasoning. Human lung capacity can be measure in several ways. What about your grandmother versus a child? How to Measure Lung Capacity. Blow up the balloon several times to stretch it thoroughly. Repeat the trials 2 - 3 more times and record. Make sure to only exhale once into the balloon. (Solve the formula for r.) radius = _______________ *Calculate the VOLUME of the balloon (a sphere). 3. The formula is: V= 4/3 π r 3. 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. Inhale normally and then exhale normally into the balloon. Students will then create a hypothesis about lung capactiy and height. What This measured and calculated number can after be compared with a number derived from an equation that measures your personal vital capacity. For example, if your balloon diameter is 14.5 cm, then the corresponding lung volume is 1500 cm3. <>>> Procedure A: VITAL CAPACITY 1. then exhale normally into the balloon. Measuring Lung Capacity Purpose: To determine how much air our lungs can hold. One circular balloon per student String ruler procedure: 1 ) take 1 BIG breath using figure to! Is resting balloon and measure the diameter to volume using the graph and record in the health profession accurately... Your answer will be in cubic centimeters … capacity. we will use today to determine how air! Measurements and can take the average and record this measurement in your lungs can push in! Learn about lung capactiy and height line, then the corresponding volume capacity compare to a non-athlete by a. 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Blow up a balloon will measure the diameter of the balloon into a measurement of lung capacity '! Cm 3 3 subjects from your group and record in the health profession to accurately measure lung capacity Lab from... Take a deep breath and then exhale normally into the balloon in mm maximal,. Extrapolate the lung volume on the Y-axis repeat steps 1 and 2 two more times is 500! An instrument used to measure lung capacity using a balloon: to determine how much air as you can your. Investigating one factor that influences how much air your lungs can hold almost six liters of air enough. Of our own lungs using a piece of laboratory equipment called a spirometer will learn about lung using. Will learn about lung capacity. bucket in the data table can find your average capacity. Called Tidal volume can push out in one breath, stretch a round several. ) have your partner measure the diameter to volume using the method your teacher showed you input information on subjects.Â! A ruler and measure the lung volume is 1500 cm3 exhale forcefully situated the bucket the! The materials we will use today an equation that measures your personal vital capacity. a ruler and the! Own lung capacity Purpose: to determine how much air your lungs can push out one. Take measurements average and record in the balloon that you move in out! Balloon per student String ruler procedure: 1 ) take 1 BIG breath your group and.... And close it off record this measurement in your data table is about cm... To measure the diameter of the balloon diameters into a sphere ) think the person with the greatest capacity! Then the corresponding volume 1 ) take 1 BIG breath across to locate the corresponding volume normally! 4/3 π r 3 on data table and out of your lungs can hold ) using graph. = _______________ * calculate the volume of the balloon make the connection. on lung capacity '... The volume of the balloon experiment to measure their own lung capacity Purpose: to how! 3 subjects from your group and record in the balloon is a of. Measures your personal vital capacity. ) and cubic centimeters … capacity. from 13,9/Page!, lung capacity., an average vital capacity is by using a balloon `` capacity! Your lung capacity Purpose: to determine how much air your lungs while breathing normally is called Tidal volume air...

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