Making a pinhole camera with a box is an optics experiment suited for grades 4-7. The sheet opens with a background section explaining how light rays enter a tiny hole and project an inverted image on the opposite wall, then walks students through six illustrated steps: sealing one end with black paper, covering the other with aluminum foil, poking a pinhole in the foil, taping white or tracing paper inside, pointing the camera at a bright scene, and observing the result. Observation prompts ask students to describe the image, confirm whether it appears upside down, and test what changes when the pinhole is made larger. A draw-your-result box asks students to sketch the inverted scene they see.

This lab fits naturally into a light and optics unit study or a broader physics sequence covering how cameras and the human eye work on the same principle. It works as a standalone session or as an anchor activity before introducing lenses. Students demonstrate understanding of rectilinear light propagation and image inversion by completing the observation and conclusion sections, and a challenge prompt pushes curious learners to test a smaller pinhole and explain the difference.