1. A is formed when an object blocks the path of light 2. A mirror works by the light that hits

1.A _shadow_ is formed when an _ transparent _ object blocks the path of light

2. A mirror works by _reflecting_the light that hits

Explanation:

1. A shadow is made when an object blocks light. The object must be opaque or translucent to make a shadow. A transparent object will not make any shadow, as light will pass straight through it.

2.When photons — rays of light — coming from an object (your smiling face, for example) strike the smooth surface of a mirror, they bounce back at the same angle. Your eyes see these reflected photons as a mirror image.

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