Color Vision: Humans and Animals
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Objective
I can compare how humans with colorblindness and various animals perceive color.
Part 1 of 4
Warm-up video
SciShow · 2:35Vetted channel
We don't generate video — this one is by SciShow on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
Our eyes contain receptor cells called cones and rods, which convert light energy into chemical energy.
- 2
Most humans have three types of cones: blue, red and green, allowing them to see about one million colors, a condition called trichromacy.
- 3
People with dichromacy can see about ten thousand colors, while people with monochromacy only perceive about one hundred colors.
Part 3 of 4
Practice
4 questions
Explain the difference between how rods and cones contribute to vision.
What is the most common cause of color blindness, and how does it affect color perception?
Part 4 of 4
Exit ticket
Quick comprehension check
“Explain the difference in color perception between someone with dichromacy (colorblindness) and someone with monochromacy.”
Sample answer included in the free materials
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