Mission 1 - Wayward Water! – Explore the Hydrosphere

  • Overview
  • Teacher Support

Let's think about what we saw in the last video. 

What are some observations we can make about the scene?

  • There was a small body of water called a pond in the middle of a larger depression.
  • Near the pond is a muddy area, an area with trees and grass, and a nearby house with a dock.
  • There does not appear to be an outlet for water from the pond, such as a stream, where could the water have gone?
  • The water in the pond appears wavy and agitated by the strong winds.
  • Grass, trees and tree roots can be seen near the pond. Very near the water, mud has been exposed and contains cracks.

 What questions can we ask from these observations?

  • Based on the height of the dock and exposed mud, do you think the pond looks full, or is the water level lower than normal? How can we tell what the normal water level is? If there is no outlet, where could the water have gone?
  • Describe the water in the pond. Is the pond water smooth, or wavy? What might cause the pond water to move around? Are the trees moving too?
  • The cracks in the mud suggest the mud is drying out, like mud on your shoe might. Does that suggest the water is moving into the mud, or out of it? 
  • Is it possible that the house in the background could be responsible for removing water from the pond?

Based on those observations, we can agree on a central hypothesis: the water left the pond either via the ground, the plants, the house or the air.  How can we determine which? 

In the video above, you can observe the scene again to investigate the scene in more detail and determine which hypothesis is the best fit. Click on parts of the scene to gather some clues and data to test those possible hypotheses and choose which is the best answer.

Once you have completed the investigation video above, please click "Next Lesson" to proceed to the mission summary and expansion.


Click HERE to download the Experiment Sheet

Gater Data Segments: