Summary In a dark room use mirrors to reflect pocket laser beams. Science content Physics: Light and Sound (1) Lessons activity is in Lasers Materials dark room pocket lasers small mirrors optional: cornstarch for visualizing laser beam Procedure Give students pocket lasers, small mirrors, and tape. Ask them to reflect the laser around the room. It is more challenging than expected, as a slight change of angle of the mirror will change the direction of the laser dramatically. Very fun, but very dusty for other objects in the room: clap cornstarch in the air to visualize the laser beams. Students can design a challenge where they have to crawl under and climb over laser beams without touching them. Grades taught Gr 4 Gr 5
