Why We Have Freckles and How They Work

SciShow Kids

Join Jessi and her robot friend Squeaks in this engaging exploration of human biology as they investigate the science behind freckles. The video explains exactly what freckles are—small concentrations of melanin—and why they appear on some people's skin but not others. Through clear analogies and kid-friendly visuals, the host breaks down complex biological concepts like pigmentation and the skin's reaction to sunlight. Key themes include the role of melanin as a natural sun protector, the relationship between sunlight and skin changes (tanning and freckling), and basic genetics regarding inherited traits. The video also clarifies the difference between freckles and moles and touches on how our bodies change with seasons and age. This resource is highly valuable for early elementary science classrooms studying the human body, diversity, or sun safety. It provides a scientific explanation for physical differences students notice in themselves and their peers, fostering self-acceptance and scientific curiosity. Teachers can use it to introduce concepts of adaptation, heredity, and the importance of protecting our bodies from environmental factors like the sun.