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Estimating lung volume

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Lesson details

Lesson outcome

Waxaan sharxi karaa sida loo isticmaalo qalab fudud si loo qiyaaso mugga sambabada.

Introduction

In this lesson: I can describe how to use simple apparatus to estimate lung volume. The vital capacity of the lungs is the maximum volume of air that can be exhaled after inhaling fully. How to measure vital capacity using simple apparatus.

Show transcript
The vital capacity of the lungs is the maximum volume of air that can be exhaled after inhaling fully. How to measure vital capacity using simple apparatus. The closer a measurement is to the true value, the more accurate it is said to be. An estimate is an approximate (rough) value of a quantity (without taking accurate measurements). An estimate of lung volume can be calculated from a measurement of vital capacity.

Worksheet

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Quizzes

  1. 1. When we breathe in, air moves into the ...

    • brain
    • heart
    • Correct answer:lungs
    • stomach

  2. 2. Which part is a lung?

    • A
    • B
    • Correct answer:C
    • D

  3. 3. Which scientific word means "breathe in”?

    • exhale
    • Correct answer:inhale
    • respiration

  4. 4. When we breathe in, the volume of the lungs ...

    • decreases.
    • Correct answer:increases.
    • stays the same.

  1. 1. What happens when we exhale?

    • air moves into our lungs
    • all of the air moves out of our lungs so they are totally empty
    • Correct answer:most of the air moves out of the lungs but some stays behind

  2. 2. Who correctly explains what is meant by the **volume** of a liquid or gas?

    • a black and white drawing of a boy's face with a bow on top of his hair and a smile on his faceJun: “It means how loud the liquid or gas is.”
    • a black and white drawing of a man's face with a smile on it's face and a short haircutLucas: “It means the height of the liquid or gas.”
    • Correct answer:a black and white drawing of a person in a space suit with a scarf around their neck and a smile on their faceAisha: “It means how much 3D space the liquid or gas takes up."

  3. 3. The maximum volume of air you can breathe out after breathing in fully is called your vital ...

    • Correct answer:capacity
    • estimate
    • quantity
    • volume

  4. 4. Which units do we use when writing down a measurement of the volume of a liquid or gas?

    • cm
    • $$cm^2$$
    • Correct answer:$$cm^3$$
    • $$cm^4$$

What pupils see

The same lesson as a pupil sees it. You can set any section as work on its own.

  • IntroductionPrepare
  • Starter quizActivate · 4 questions
  • Lesson videoLearn
  • Exit quizCheck · 4 questions
This content is by Cashar and published under an open licence.