4. Investigates and describes sources of energy including light, heat, and electricity WHICH LIGHT SOURCE IS THE BRIGHTEST? INVESTIGATION: Comparing the brightness of different light sources. PROCESS SKILLS: Observing, comparing, communicating PROCEDURE: Introduce children to the balance. Offer them a variety of materials for further explorations. MATERIALS: a variety of light sources: lantern, 3 sizes of flashlights, picture of the sun, picture of the moon, lamp, etc. Make sure that other materials are available for exploration QUESTIONS: o
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Which light source is the brightest/ dimmest? How can you tell? Why is it the brightest/dimmest? Can you feel the light? Can you hold it? Why not? Have you ever been in a dark place? Could you see? Can you see best with the brighter light? Why or why not? LITERATURE CONNECTION: “Can’t You Sleep Little Bear?”, Martin Waddell “Night Lights”, Susan Gal “Light and Dark”, Sally Hewitt MATH CONNECTION: Continuum DIMß-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐-­‐àBRIGHT