the respiratory system..

woofffff!!!
from so many times that we didn't have class on science, finally we have it this week..

first of all,
i would like to recall the things we discussed before this thing on the last 3 weeks..
i was in baguio that time but we already discussed about the digestive system then..
then we went into the circulatory system and i know i wasn't able to attend the classes because we were on seminars then..
and then a 1 week no classes because the STEP competition was held here in our school..
until finally. we met this week and we tackled about the respiratory system..

i love this topic at all, even though i wasn't able to attend one of the class because i had an allergy..
first of all, we did an activity..
i love doing that thing! the thing of making a Lung Model out of those materials...

we discussed about the breathing process in the lungs- inhalation and exhalation...
just like this(this was m favorite line about this lesson)

when we inhale, our diaphragm contracts, making the air outside our body which has a greater pressure than the air inside outside the body, rushed inside.. this process is called inhalation or inspiration. but when we exhale, our diaphragm relaxes and thus, going back to its normal position... the pressure outside our body will then have the greater pressure because the pressure inside the body released outside

haha.. yeah.. i love that explanation.. well, that's the truth about breathing process during respiration...

hmm.. that's all for now and i am really excited to tackle about excretory system.. i heard that there would be some GUESTS and SPEAKERS who are experts about this topic.. im really excited... who are them kaya(hahahahahha) ;]