מערכת מעקב הסרגסום (USF)

💡 הסבירו לי כאילו אני בן 10

• Sargassum is a brown seaweed that floats in big mats on the ocean.
• Some years so much of it washes onto beaches that it piles up on the shore.
• Scientists use satellites to see where it is, so coastal towns can get ready.