Why do stars “twinkle”?


#1

What will be the ideal response?


#2

ANSWER: As starlight enters the atmosphere, it often passes through regions of differing air density. Each of these regions deflects and bends the tiny beam of starlight, constantly changing the apparent position of the star. This causes the star to appear to twinkle or flicker, a condition known as scintillation.


#3

Beautifully done! Thanks