What are the three primary colors of light and why are they different from the three primary colors of pigment? Why does the color of an object depend on the light around it? Watch your students become scientists as they dig into these fascinating questions. These two different lab explorations can be used alone or in tandem, depending on your equipment and needs.
Accompanying videos can be used as you see fit: as background for yourself or as an introduction or review for the students. Check the link below to watch the video and judge for yourself.
• Color mixing (additive and subtractive)
• How our eyes see color
• Why objects are the color they are
SOME OF THE SKILLS AND TASKS INVOLVED:
• Use pigments to show subtractive color mixing.
• Use colored lights to show additive color mixing.
• Deduce the color an object will appear depending on its color and the color of the illuminating light.
To see the accompanying videos, click here:
colored light & filters
These experiments are part of a complete unit, titled, Light, Optics, & Color and can be seen here:
Complete Light Unit on TpT
To see companion curricular pieces click here:
TpT Store Light & Color Category
Extensive teacher notes address the many questions that come up. You shouldn’t have to do outside research on this topic unless you want to. Specific charts and graphic organizers have keys.
About 30 minutes for each of the two activities