Don't Eat the Watermelon Snow!

Watermelon snow, a pink snow with a watermelon scent, is caused by the algae Clemidemonas Novalis. Historically noted by Aristotle and Captain John Ross, its color is due to a red carotenoid pigment that protects the algae from solar radiation. The algae thrive in high altitudes, adapting to harsh conditions. They become active in spring, moving towards the snow's surface as it melts. Watermelon snow is found globally, but consuming it may cause digestive issues. The algae's life cycle and environmental interactions support other organisms in snowy regions.

What was the initial belief about the cause of the pink color in watermelon snow?

• Blood contamination

• Chemical pollution

• Mineral deposits

• Iron deposits in the soil

Which pigment is responsible for the red color in Chlamydomonas nivalis?

• Chlorophyll

• Carotene

• Astaxanthin

• Xanthophyll

How do the algae in watermelon snow protect themselves from solar radiation?

• By hiding under rocks

• By producing a red outer layer

• By migrating to lower altitudes

• By forming a thick green layer

What are sun cups, and how do they form?

• Crystals formed by freezing rain

• Snow mounds formed by animal activity

• Indentations in snow due to algae absorbing heat

• Small ice formations caused by wind

Where can you find watermelon snow in the United States?

• Cascade Range

• Sierra Nevada mountain range

• Appalachian Mountains

• Rocky Mountains