Huffing and Puffing to Understand Slope or Smoke and You Croak

1
Huffing and Puffing to Understand Slope or
Smoke and You Croak

• Lenny VerMaas, ESU 6

2
Smoke and You Croak

• Handoutswill come at the end
• There is one sheet that will be completed during
  the activity. A clean sheet is in the handouts.
  Electronic copies of the handouts are on my web
  page.

3
Think AboutHow much air will your lung hold?

• How could we measure that volume?

4
What will affect your lung capacity?
5
Scientific Vocabulary

• inspiratory reserve volume
• vital volume
• expiratory reserve volume
• residual volume
• vital capacity
• total lung capacity
• For exact definitions visit your friendly science
  teacher.

6
Picture of lung capacity
7
Learning Vocabulary

• consider special strategies to help students
  learn the terms
• circle, circumference, radius, diameter, sphere,
  locus of points, directly proportional, and
  inversely proportional

8
How can the volume of a persons lung be measured?

• Accurately using a spirometer
• Approximationwater displacement or blowing up a
  balloon.
• Estimate the Volume of Your Lung
• Think of a 2 liter pop bottle.

9
Here is the MATH
10
A Worked Out Example
11
Cubic centimeters to liters
12
Here We Go

• Take a balloon and with one breath blow as much
  air as possible into the balloon.
• Measure and record the circumference of the
  balloon.
• Keeping the air in the balloon add another breath
  and measure and record the circumference.
• Add one more breath, measure and record the
  circumference.

13
Fill out the chart
14

• Measure the circumference after one breath.

15
Concentrate and Measure
16
Measure Circumference After 2nd Breath
17

• Measure the circumference after the third breath

18
How Big Can Your Balloon Go?
19
(No Transcript)
20
What to do if your balloon looks like this?
21
(No Transcript)
22
Plotting Your Data
23
Time to Collect Data
24

• Circumference vs diameter Radius vs volume

25
Save Your Balloon For Some More Fun

• Attach a straw and see how far and fast it will
  travel down a string.
• Where can the straw be attached for maximum speed
  and distance.
• Does the length of the straw make a difference.
• Blow up the balloon, release the balloon, measure
  the time in the air, plot circumference vs time
  in air.

26
Blow up the Balloon
27
Attach Straw Carefully to Balloon

• See how far and how fast it will travel down a
  string.

28
Down the String

• Measure the time and distance. Use this data to
  calculate the speed

29
(No Transcript)
30
(No Transcript)
31
(No Transcript)