Posts

SURFACE TENSION

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Samaresh  Goswamy  WHAT  ARE  NEEDED: *   A Plastic  Bowl  of  medium  size  *  Water  *  A Plastic  shaped  Arrow shaped  float with a'V' cut *  some detergent  powder  WHAT  TO  DO  : *  Float the  Plastic  shaped  Arrow on the  Water in  the  Bowl  * ADD a pinch of  detergent  powder in  the  water near the  'V' notch of  the  Plastic  Arrow  WHAT  TO  OBSERVE  : *As a  pinch  of  detergent  powder  is added  near the  V notch of  the  Arrow  it starts moving  forward.   WHAT  IS  GOING  ON  : Due to  surface  tension  the  free surface  of  water behaves like  a  thin stretched membrane where equal  forces of surface  tension  acts in...

INERTIA

Samaresh  Goswamy  My idea  of  writing  these simple  science  experiments  is  to  develop  a  spirit  of  inquiry  in  the  minds  of  school students  so that  they  get  an interest in learning  science. This  reminds  me  of  a  famous  Chinese  proverb " I  see  I forget  I read I remember,  I  do I  understand " essentially  it means  science  can  be  best  learnt by " doing in your  own  hands ". Let us now  learn what  is  Inertia. This  will  be clear by doing  this  experiment at home  by yourself  or with  the  help  of  your  parents.     WHAT  ARE  NEEDED: *  A boiled egg *  A raw egg *  A table WHAT  TO  DO: *  Place  The...

FUN-IN SCIENCE EXPERIMENTS

   CENTRIFUGAL  FORCE  By prof.Samaresh Goswamy  The  experiment  I am  going  to  write  is primarily  for  school  students.  I would  expect  if parents / grand parents  whohappen to  read  this  they should  share  with  their  school  going  children /grandchildren and  take  interest to  explain  to  them .after  that  I  would  expect  children  to  collect  the  items and perform the  experiment with  their  own hands.  The  way science  is taught  in many  school  specially  in rural areas  ,where  there  is  no  Laboratory , students  lose  interest  in  science  because  they  can't  understand  merely  by lecture.  Intention  of these experi...

BUOYANCY

      What  are  needed: .  A glass of about  250ml capacity  .   Two  Ice Cubes  .   Water     WHAT  TO  DO .   Take  some  Water  in  the  glass .   Drop  the  Ice Cubes  in  Water      What  to  observe  .   As you  Drop  Ice  Cubes  in Water,  Ice  Cubes  floats  in  Water  and  Water  level  rises, mark the  level  ( with  a marker  or sketch  pen) .  When  the  Cubes  melts completely,  Does  the  Water  level  increase  or decrease? WHAT  IS  GOING  ON: .  Ice  is lighter  than water, I.e : density  of  Ice ( 0.917 gm/cc) is less than  that of  Water ( 1gm/cc) and  that's  why  Ice...

FUN IN SCIENCE EXPERIMENTS

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It has been  observed  because  of  lack of  understanding  a large  number  of  students  lose interest  in  science  as they  grow  up. Science  can't  be  taught  by  merely  chalk & talk method. Experiments  is a must  for  developing  a  taste & understanding  in science. But  the  sad part  is  that  a large number  of schools  in our  country  lack facilities  for  Experimentation. In ordered to  popularise science  and developing a  spirit  of  inquiry  in the  minds of  the  lerners hands- on experiments  is a must. It is  absolutely  a false notion  that  for  conducting  science  experiments  always  costly equipments and sophisticated  set- ups are nessary, infact the  reverse...