You can state the differences between inhaled and exhaled air.
You can describe how inhalation and exhalation are achieved
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Slide 1: Slide
BiologieMiddelbare schoolhavo, vwoLeerjaar 2
This lesson contains 23 slides, with interactive quizzes, text slides and 2 videos.
Lesson duration is: 45 min
Items in this lesson
B4 Breathing
Take off your jacket
Put your things on your desk
Book, notebook, pencil case
Bag on the floor
Read pages 27-
timer
4:00
Lessongoals
You can state the differences between inhaled and exhaled air.
You can describe how inhalation and exhalation are achieved
Slide 1 - Slide
Dinand owns a bottle containing nitrogen (N2). He let's some of this gas (nitrogen) go into a beaker with clear limewater. What will happen?
A
Limewater stays clear
B
Limewater becomes cloudy quickly
C
Limewater becomes cloudy slowly
D
Limewater?
Slide 2 - Quiz
Samir also owns a bottle, this one contains an unknown gas. He also let's some of this gas go into limewater. The limewater becomes cloudy. The gas must be ..
A
Oxygen (O2)
B
Carbon dioxide (CO2)
C
Nitrogen (N2)
D
Helium (H2)
Slide 3 - Quiz
What part in the pharynx (throat) prevents food from getting in your nasal cavity
A
tongue
B
epiglottis
C
uvula
D
oesophagus
Slide 4 - Quiz
Your body contains alveoli. How many do you think there are?
Slide 5 - Open question
The windpipe is always open. Rings made out of ... keep it open. Fill in the word on the dots
Slide 6 - Open question
Breathing through your nose is healthier than through your mouth because ...
Slide 7 - Mind map
Oxygen is taken out of the inhaled air, it goes into the blood
O2
The alveolus
Carbon dioxide goes from your blood into the air inside the alveolus
CO
the walls of the alveolus are only 1 layer of cells thick. This makes exchanging of gas very easy.
The lungs contains thousands of alveoli, many more than are shown on the image.