Rods and Cones in the Eye
Open to everyone until Friday, October 2
To keep it, print it while it is open.
The retina lines the back of the eye. Rod cells help you see shapes in dim light, while cone cells help you see colors and details in brighter light.
In the picture
- Moonlit cat: a shape seen in dim light as a gray silhouette.
- Rod-shaped cell: active in dim light.
- Daylit cat: seen in color and detail.
- Cone-shaped cell: active in bright light.
Examples
- Finding your way around a dark room by seeing shapes.
- Picking a red apple in daylight by its color.
Key takeaways
- Rod cells work in dim light and show shapes without color.
- Cone cells work in brighter light and show color and detail.
Carry on in the app
Three questions on this lesson, to check the idea stuck. Free in the app while the lesson is in the free week.
At least one new illustrated lesson every weekday for your child’s year, with its quiz and a reminder at 6:15 pm.
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