Science fact of the day: Sea foam is made of tiny particles

Seawater contains tiny particles of organic matter, including dissolved salts, proteins, fats, and dead algae.

It also contains detergents, pollutants, and other pieces of artificial matter.

Sea foam forms when all of these particles are churned up by wind and waves. Algal blooms are one of the most common sources of thick sea foams. Notably, sea foam is generally not harmful to humans or marine life, but in certain cases, it can be.