Light changes direction slightly when passing from one substance to another?

When a ray passes from air into glass the direction in which the light ray is traveling changes. ... This bending of a ray of light when  passes from one substance to another substance is called refraction. Hope this helps!!!

This phenomenon is known as Refraction.

Explanation:

Light waves change speed when they pass across the boundary between two substances with a different density, such as air and glass. This causes them to change direction, an effect called refraction.

At the boundary between two transparent substances:

the light slows down going into a denser substance, and the ray bends towards the normal

the light speeds up going into a less dense substance, and the ray bends away from the normal

Plants and algae convert carbon dioxide to organic matter through the process of photosynthesis, the energy of light. Carbon is present in all life: All living things contain carbon in some form, and carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and carbohydrates.