LUZ Y SOMBRAS
CAN YOU DESCRIBE HOW LIGHT TRAVELS AND USE THIS MODEL TO SHOW HOW A PINHOLE CAMERA WORKS?
MATERIALS (Details in Teacher Notes linked below)
Activity 1 – How Does Light Travel?
- Cardboard square with triangle hole cut in the center,
- Small light source like an LED key chain light or bare flashlight bulb. LED finger lights work well too.
Activity 2 – Two Light Sources
- Same as Activity 1, but add a second bulb preferably of a different color.
Activity 3 – More Light Sources
- Replace the small point sources of light with a bulb with a long filament, like the kind used in fish tanks or
display cases.
Activity 4 – Make a Pinhole Viewer
- Empty carton, size not important but at least 25 cm on a side
- Transparency paper or waxed paper
- Aluminum foil
- Sharp pencil
- Tape
- Black electrical tape as needed
OPTIONAL ACTIVITIES: Everyday Pinhole Images and Oatmeal Box Pinhole Camera. See teacher notes for details.
STUDENT INSTRUCTIONS AND TEACHER NOTES
PowerPoint Slides with Student Instructions (zipped file) Light and Shadows PPT slides
Presentaciones de PowerPoint con instrucciones para estudiantes (zipped file) Luz y sombras.PPT
Teacher background notes (pdf) Light and Shadow Teacher Notes
Handout for recording observations and data (pdf)Light and Shadows data table
Video showing construction of pinhole viewer Optics Exploration- The Pinhole Viewer
A few photos taken with a student-made oatmeal box pinhole camera
