Do stars really twinkle?

The answer for it is NO.Wait before you call your nursery teacher that she was wrong look at the reason that how does it SEEMS to twinkle?

Stars do not really twinkle, they just appear to twinkle when seen from the surface of Earth. The stars twinkle in the night sky because of the effects of our atmosphere. When starlight enters our atmosphere it is affected by winds in the atmosphere and by areas with different temperatures and densities.

 

Here's a video of small activity carried out by some scientists .Have a look on it.