TYNDAL EFFECT

 When a ray of light pass through a colloidal fluid or suspension , the tiny particles get illuminated due to scattering. Because of this the path of the light made visible. This phenomenon is know as tyndal effect.

The intensity of the scattering depends up on the size of the particles in the medium through light passes. As the size increases the intensity of the scattering also increases.

 
In a misty morning the path of light is visible through the areas with dense trees, because mist is a colloid of air and water vapour. Particles in the mist is big enough to scatter the sunlight so the path of the light is visible.


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WORKING MODEL FOR SCIENCE EXHIBITION- DANCING BALLOON

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 DANCING BALLOON  SCIENCE EXHIBITION PROJECT FOR HIGH SCHOOL STUDENTS  A working model for science exhibition ‘THE DANCING BALLOON’ is an application of Newton’s third law of motion- Every action has an equal and opposite reaction and also explains about effect of less friction helps in the motion of a body. MATERIALS REQUIRED  1- Balloon  2- Compact disk (CD) 3- Glue 4- Bottle cap PROCEDURE  *Put a hole on bottle cap(at the centre)  * Using glue stick the bottle cap at the top of CD (cap should be fixed on rough and non shiny surface of CD . Make sure no gap between CD ad the bottle cap) * Keep it aside still glue dries up to make strong bond between CD and bottle cap * Inflate the ballon and fix it on bottle cap as shown in video  * And keep CD on plane surface and release it. RESULT Balloon/CD arrangement start moving around the plain surface automatically . SCIENTIFIC EXPLANATION  Due to the force applied by the air inside the balloon it ...
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This blog contents are specifically for high school students all over the world . Those who are preparing for GCSE physics and GCSE chemistry have lot of topic to refer from this blog. PHYSICS   CHEMISTRY   SCIENCE IN DAILY LIFE  SCIENCE EXHIBITION PROJECTS 
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