Page 9 - 新思维科学活动用书8 样章

1 Respiration

Practice

2 Describe the relationship between body mass and total surface area of the air sacs.

Challenge

3 Suggest an explanation for the relationship you have described.

1.3 Breathing

Exercise 1.3A Measuring lung volumes

Focus

In this exercise, you complete a results table. Then you calculate
mean values and draw a bar chart.
Sofia and Zara want to know if learners who play wind
instruments in the school orchestra can push more air out

of their lungs than learners who play stringed instruments.
The girls take a large, empty bottle. They mark a scale
on the side to show volumes.

1 Describe how Sofia and Zara can make the scale on the bottle.

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