Natural Science - Unit: The human body and nutrition
LESSON: RESPIRATION
... Have you practiced your 'Body systems' song?... Well, let's see...
One question... We were talking about how long could we survive without eating... Now:
How long do you think we could survive without breathing?
Why?
Well... You're starting to understand how our body is a machine... This machine needs nutrients to work and be alive... But not only those nutrients coming from food... OXYGEN is fundamental in making our body work... And we are constantly getting it... This video shows you exactly how we do it:
And this is our LESSON's SUMMARY:
