We turned in “Star light, star bright stimulation” (175-176 in our lab manuals), “Electromagnetic Spectrum Table” (177-178), and the guided reading questions from properties of light packet. We then talked about our group project (191) and each table was assigned a question to work on. The projects are due Tuesday April 17th. We also got to see how light energy worked by spinning glow sticks and we switched out the old ones because they were dying, so some people got glow sticks. We then worked on our Color Lab (187-189).
Homework: Work on the lab if it wasn’t completed during class. You may also start the lab we’re planning on doing tomorrow in class if you wish to have in class time to work with your group on the project. The lab is pages 179-185.
Question of the day answer: Pigments are tiny solid particles that produce their characteristic colors by the process of selective absorption or selective transition of light depending on their frequencies. So when you mix the primary colors for pigments, all of the color white light produces is absorbed and the mixture appears black. However, when the three primary colors for light are known as subtractive primary colors, which means when mixed they produce a subtraction of colors. So when the three primary colors for light are mixed, we see the light after the colors are absorbed which results in white.
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