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)
Science topic (2005 curriculum connection):
Life Science: Animal Growth and Changes (grade 2)
Life Science: Human Body (grade 5)
Physical Science: Light and Sound (grade 4)