1. They alter appearance by selective absorption and/or by scattering of light.

2. Absorption and scattering of light by turbid materials was accounted for by the Kubelka theory.

3. All of the leaf Blowers below will handle pavement sweeping and a scattering of light leaves

4. Elsewhere is largely dry with sunny spells and just a scattering of light showers, but becoming cloudier in Northern Ireland towards evening.

5. Colorant Colorants are substances added to a coating in order to modify the optical properties of the film, in particular opacity, and the absorption and scattering of light that gives rise to the phenomenon of color