DOBLANDO LA LUZ – REFRACCIÓN
This lesson has both qualitative and quantitative activities, each lasting about one hour.
Activity 1: pen and paper, ruler, laser pointer, slab of stiff gelatin (or polished acrylic block if available). A 8-10 cm square of gelatin (2-3 cm thick) is sufficient for two students for all activities. To cut a smooth edge use a non-serrated knife or a smooth, thin piece of plastic (for example, a strip cut from a plastic report cover).
Activity 2: cup, penny, water
Activity 3: A small Pyrex beaker or test tube, a larger transparent glass or beaker to hold the small one, vegetable oil (canola or safflower). Alternate: clear glass of water with a few gel beads (used for arranging flowers)
Activity 4: Stiff gelatin, round cookie cutter or flexible plastic strip for cutting, laser pointer
Activity 5: Stiff gelatin, laser pointer
Activity 6: (Depending on design) Carton, water bottle, flashlight
OPTIONAL: Magic Lens activity: Two watch glasses (from a chemistry lab), waterproof caulk (like aquarium cement), a fish tank or box big enough to submerge the lens, laser pointers
STUDENT INSTRUCTIONS AND TEACHER NOTES
PowerPoint slides with student instruction Bending_Light-Refraction_Slides.pptx
Presentaciones de PowerPoint con instrucciones para estudiante 4 Doblando_la_luz-Refracción.pptx
Teacher background notes Bending_Light-Refraction_Teacher_Notes
Handout for recording observations and data Bending_Light-Refraction_Observations