The Largest River on Earth Is in the Sky

Water vapor released by trees in the Amazon creates a floating river. In fact, it's the largest river on Earth! A video presentation examines the science behind the water vapor and explains how rains seeds form to create clouds.

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CCSS: Adaptable
Instructional Ideas

  • Calculate the capacity of water in the air
  • Follow the lesson with a lab investigation monitoring the water vapor in different environments
Classroom Considerations

  • Builds on an understanding of vaporization and cloud formation

  • Previews additional videos of interest at the conclusion of the lesson
  • Narrator shows excitement for the lesson, making the presentation more interesting

  • None