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Activity

Lasers and mirrors

Summary: 
In a dark room use mirrors to reflect pocket laser beams.
Science content (2016 curriculum): 
Physics: Light and Sound (1)
Science topic (2005 curriculum connection): 
Physical Science: Light and Sound (grade 4)
Lessons activity is in: 
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 tested: 
Gr 4
Gr 5
Teacher: 
Ingrid
Teaching site: 
ingridscience afterschool
Activity originally developed and delivered: 

ingridscience afterschool