4.2 Air pressure
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Slide 1 - Diapositive
Which gases do you find in the air around us?
A
78% oxygen,
21 % carbon monoxide,
0.03% nitrogen
B
78% carbon dioxide,
21 % nitrogen,
0.03% oxygen
C
78% nitrogen,
21 % oxygen,
0.03% carbon dioxide
D
78% nitrogen,
21 % oxygen,
0.03% carbon monoxide
Slide 2 - Quiz
Slide 3 - Vidéo
Which instrument is used to measure air pressure?
A
Thermometer
B
Pump
C
Vacuum cleaner
D
Barometer
