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Eyes: examine your eye

Students look at their own eye in a mirror to find identify visible parts. Use a flash light to change the size of the pupil.
Science content (2016 curriculum): 
Biology: Features, Adaptations of Living Things (K, 1, 3, 7)
Biology: Sensing, Organ Systems (4, 5, 6)
Lessons activity is in: 
  • mirror each
  • flashlight for each pair

Look at your eye with your mirror.
Find your pupil. That is where the light comes in. It looks black because no light comes out again.
Find your iris. What colour is your iris?
What colour is your neighbour’s iris?
Draw an eye showing the pupil and iris.

We regulate how much light is coming into our eye by changing the size of the hole, the pupil.
Look at your eye in the mirror. Move the flashlight onto your pupil, then away, watching it.
Look for the pupil changing size. Does it get larger or smaller when you shine the light on it?


Hard for Ks to manipulate mirror and flashlight - try in pairs.

Grades taught: 
Gr K
Gr 1
Gr 2
Gr 3
Gr 4
Gr 5
Teaching site: 
General Gordon Elementary Science Club
ingridscience afterschool