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Lenses: lenses bend light

Use a laser pointer and a lens to show how light is bent by the lens.
Science content (2016 curriculum): 
Biology: Sensing, Organ Systems (4, 5, 6)
Physics: Light and Sound (1)
Lessons activity is in: 
  • Laser pointer, or other focused light source
  • Curved lens that clearly shows the laser beam bending

Hold the laser pointer up to the lens, and show how the light bends as it emerges from the lens.
The lens in our eye does the same thing, to project light from what we are looking at onto the back of our eye.

Grades taught: 
Gr K
Gr 1
Gr 2
Gr 4
Teaching site: 
General Gordon Elementary Science Club
ingridscience afterschool