Yes, white light is made up of a mixture of many colors of light. This is why we see a rainbow when sunlight passes through a prism. The prism separates the different wavelengths of light, revealing the individual colors that make up white light.

Here's a breakdown:

* White light: A combination of all the colors in the visible spectrum, as perceived by the human eye.

* Visible spectrum: The range of colors we can see, from red (longest wavelength) to violet (shortest wavelength).

* Prism: A triangular piece of glass or other transparent material that bends light, separating the different wavelengths.

Think of it like a water droplet acting like a tiny prism, separating sunlight into a rainbow after a rainstorm. The same principle applies to rainbows created by prisms or even a CD.