[s2e7] Light -

: It introduces the basic use of lenses and prisms to manipulate light paths.

: The episode illustrates how light interacts with surfaces through reflection (bouncing) and refraction (bending when passing through different materials like water or glass). [S2E7] Light

While "Light" refers to the Bill Nye science episode, it is worth noting that other series have similarly titled episodes in their second seasons: : It introduces the basic use of lenses