Experiment #1 #2 #3

hello there. ;)
it's
WEDNESDAY! yes, wednesday of the holiday weeeek! woots.
today did ntg much.
just online, online and online. ;D ;D
so today my post is going to be about 3
experiments that i did last THREE months  weeks.
*sigh*
supposingly, i should post it last 2 weeks. BUT, imma lazy. heh
=/
the experiments were all related to “pressure”.
Firstly, there’s
this activity 3.6B in F4 physic text book pg 101, which i find that it is easy
to carry out. SO, Let’s see.

WHAT YOU
NEED
Small beaker of water [ i used a small
tank] , two drinking straws [simple?]

WHAT YOU MUST DO
1. Set up your equipment as shown in the
diagram.
2. Blow a stream of air steadily through the horizontal straw across
the top of the vertical straw.
BLOWwwww…..

RESULT:

actually there was really water droplets sprayed at high speed. but i afraid that u couldn't see. so yeah i doodle it.



OBSERVATION & INFERENCE:
[chehh, to make it sound professional ;) ]
*The water was sprayed out with
high speed ;D ;D
*When you blew a stream of air through the horizontal straw,
it created a lower pressure.The higher atmospheric pressure pushed the water [in
the small tank] up into the straw. The water in the vertical straw rised up to
the TOP and was sprayed into droplets ;)

FEELINGS : it’s really nice and fun ! at first
this activity failed. but i tried and tried, at last i made it! wohoo.
:)

Up next,
The Siphon
[have u heard of it ?]
LIKE THIS LA [look at the picture]


So,basically, this experiment i found at my
reference book on “application of atmospheric pressure”. i thought of trying it.
and here are the results!

TADAAA.. ;D

 


 Lastly,
this activity is too simple to do. and
i never tried before. So why not give myself a try? it makes no harm right? ;D



 


very easy. i need not to explain. you guys learnt
it in form 2. so yeah, that’s it!
imma feeling soooo happy!
am sooo
looking forward for the next experiment ;D ;D

i think it will be chemistry turn.
*smiles* HAHA. going to test using litmus paper [since i have some =P ]
TOODLES
;)

    
 

PS : i finished "Confessions Of a Shopaholic" both book and movie ;) i prefer the book more though even the movie is sweet