WONDER #261: What Causes Freckles?
Question 1 of 3
Freckles are just skin cells that contain a pigment called what?
Question 2 of 3
Melanin is a chemical made by skin cells called what?
Question 3 of 3
Melanin helps to protect the skin from what?
- carbon monoxide
- ultraviolet rays
Check your answers online at https://www.wonderopolis.org/wonder/what-causes-freckles.