What objects let light pass through them? Are these objects transparent or translucent? How will you incorporate light transmission into your art piece?
Reflection is when light bounces off of an object. Some materials reflect certain wavelengths to create specific colors while other smooth or polished objects reflect wavelengths to create mirror-like surfaces. Experiment with different materials and objects to determine how to convey this interaction with your art piece. Do you want colorful objects, the shiny specular reflection kind or both?
When light is absorbed by an object it is converted to head. What materials absorb light? What happens when all visible light is absorbed? What happens when some light is absorbed, and some is reflected?
When light transmits through different mediums it can change speed and direction. This can change how the object appears to us and in some cases can separate white light into the visible spectrum. What are some examples of refraction?
Scattering occurs when light passes through a non-uniform (imperfect) medium and is deflected in various directions. This often creates soft or diffuse light effects. Can you think of examples of scattering that could be incorporated into your design?
Future Engineers hosts online contests and challenges for K-12 students, including the recent Mars 2020 "Name the Rover" contest. This challenge platform was developed with support from the US Department of Education and all challenges are free for student/classroom participation.