Wednesday, April 28, 2010

Science Lesson Activity- Light

Do you think this is a good Activity for a Light lesson ?

Read the following directions and make a prediction and explain your reasoning after each question about what will happen.
1. Tape one piece of cellophane over the bulb end of each flashlight.
2. In a dark room, turn on the flashlights.
3. Shine the red and green flashlights on to the white card. What happens? (You make the color yellow.) Try mixing the blue and green lights. (You get cyan.) Now mix the blue and red lights. (You get magenta.)
4. Put the white toy in the center of the card and shine the three flashlights on it. Have the students circle around the toy to see it in different colors.
5. Ask them what color you will get if you shine all three lights on the white card at the same time. (You get white. White light is made up of red, blue, and green. These are called the primary colors. To get black, you would have mixed colored paints, not lights.)
After each observation, explain what happened and what the differences were between what you expected and what actually occurred.

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